Stop using alt- shortcuts (#20378)

Conrad Irwin created 

Closes #7688

Release Notes:

- (breaking change) Stop binding keyboard shortcuts to alt-[a-z]. These
get in the way of typing characters. This is usually not an issue for
English speakers because we don't use many characters; but for other
Latin-based languages with diacritics our shortcuts prevent them typing
what they need to type.

This primarily affects Zed's extra features:
* `alt-q` => `cmd-k q` on maOS, `ctrl-k q` on Linux for `editor::Rewrap`
* `alt-z` => `cmd-k z` on macOS `ctrl-k z` on Linux for
`editor::ToggleSoftWrap`
  * `alt-m` => `ctrl-shift-m` for `assistant::ToggleModelSelector`
* `alt-v` => `ctrl-shift-v` for `["editor::MovePageUp", {
"center_cursor": true }]` (macOS only)
* `alt-t` => `cmd-shift-r` on maOS, `ctrl-shift-r` on Linux for
`task::Spawn` (The previous binding for `editor::RevealInFileManager`
now only applies in the project panel)
* `alt-shift-t` => `alt-cmd-r` on maOS, `ctrl-alt-r` on Linux for
`task::Rerun`
* `alt-shift-f` => `ctrl-shift-f` for
`project_panel::SearchInDirectory`.
 
But also overrides some bindings from Readline.
  * `alt-h` => `alt-backspace` for `editor::DeleteToPreviousWordStart`
  * `alt-d` => `alt-delete` for `editor::DeleteToNextWordEnd`
* `alt-f` => `ctrl-f` for `editor:: MoveToNextWordEnd` (`ctrl-f` was
previously `editor::MoveRight`)
* `alt-b` => `ctrl-b` for `editor::MoveToNextWordStart` (`ctrl-b` was
previously `editor::MoveLeft`)

Note that `alt-t` and `alt-shift-t` have been kept as aliases (because
no-one complained about `t` yet; but we may remove them completely in
the future).

Change summary

assets/keymaps/default-linux.json | 13 ++++++++-----
assets/keymaps/default-macos.json | 30 +++++++++++++-----------------
2 files changed, 21 insertions(+), 22 deletions(-)

Detailed changes

assets/keymaps/default-linux.json 🔗 

@@ -56,7 +56,8 @@
       "shift-tab": "editor::TabPrev",
       "ctrl-k": "editor::CutToEndOfLine",
       // "ctrl-t": "editor::Transpose",
-      "alt-q": "editor::Rewrap",
+      "ctrl-k ctrl-q": "editor::Rewrap",
+      "ctrl-k q": "editor::Rewrap",
       "ctrl-backspace": "editor::DeleteToPreviousWordStart",
       "ctrl-delete": "editor::DeleteToNextWordEnd",
       "shift-delete": "editor::Cut",
@@ -126,7 +127,8 @@
       "shift-enter": "editor::Newline",
       "ctrl-enter": "editor::NewlineAbove",
       "ctrl-shift-enter": "editor::NewlineBelow",
-      "alt-z": "editor::ToggleSoftWrap",
+      "ctrl-k ctrl-z": "editor::ToggleSoftWrap",
+      "ctrl-k z": "editor::ToggleSoftWrap",
       "ctrl-f": "buffer_search::Deploy",
       "ctrl-h": ["buffer_search::Deploy", { "replace_enabled": true }],
       // "cmd-e": ["buffer_search::Deploy", { "focus": false }],
@@ -169,7 +171,7 @@
       "ctrl-k c": "assistant::CopyCode",
       "ctrl-g": "search::SelectNextMatch",
       "ctrl-shift-g": "search::SelectPrevMatch",
-      "alt-m": "assistant::ToggleModelSelector",
+      "ctrl-shift-m": "assistant::ToggleModelSelector",
       "ctrl-k h": "assistant::DeployHistory",
       "ctrl-k l": "assistant::DeployPromptLibrary",
       "ctrl-n": "assistant::NewContext"
@@ -326,7 +328,6 @@
       "ctrl-k ctrl-j": "editor::UnfoldAll",
       "ctrl-space": "editor::ShowCompletions",
       "ctrl-.": "editor::ToggleCodeActions",
-      "alt-ctrl-r": "editor::RevealInFileManager",
       "ctrl-k r": "editor::RevealInFileManager",
       "ctrl-k p": "editor::CopyPath",
       "ctrl-\\": "pane::SplitRight",
@@ -417,6 +418,8 @@
       "ctrl-k shift-up": ["workspace::SwapPaneInDirection", "Up"],
       "ctrl-k shift-down": ["workspace::SwapPaneInDirection", "Down"],
       "ctrl-shift-x": "zed::Extensions",
+      "ctrl-shift-r": "task::Rerun",
+      "ctrl-alt-r": "task::Rerun",
       "alt-t": "task::Rerun",
       "alt-shift-t": "task::Spawn"
     }
@@ -587,7 +590,7 @@
       "ctrl-delete": ["project_panel::Delete", { "skip_prompt": false }],
       "alt-ctrl-r": "project_panel::RevealInFileManager",
       "ctrl-shift-enter": "project_panel::OpenWithSystem",
-      "alt-shift-f": "project_panel::NewSearchInDirectory",
+      "ctrl-shift-f": "project_panel::NewSearchInDirectory",
       "shift-down": "menu::SelectNext",
       "shift-up": "menu::SelectPrev",
       "escape": "menu::Cancel"

assets/keymaps/default-macos.json 🔗 

@@ -51,14 +51,13 @@
       "shift-tab": "editor::TabPrev",
       "ctrl-k": "editor::CutToEndOfLine",
       "ctrl-t": "editor::Transpose",
-      "alt-q": "editor::Rewrap",
+      "cmd-k q": "editor::Rewrap",
+      "cmd-k cmd-q": "editor::Rewrap",
       "cmd-backspace": "editor::DeleteToBeginningOfLine",
       "cmd-delete": "editor::DeleteToEndOfLine",
       "alt-backspace": "editor::DeleteToPreviousWordStart",
       "ctrl-w": "editor::DeleteToPreviousWordStart",
       "alt-delete": "editor::DeleteToNextWordEnd",
-      "alt-h": "editor::DeleteToPreviousWordStart",
-      "alt-d": "editor::DeleteToNextWordEnd",
       "cmd-x": "editor::Cut",
       "cmd-c": "editor::Copy",
       "cmd-v": "editor::Paste",
@@ -82,13 +81,11 @@
       "right": "editor::MoveRight",
       "ctrl-p": "editor::MoveUp",
       "ctrl-n": "editor::MoveDown",
-      "ctrl-b": "editor::MoveLeft",
-      "ctrl-f": "editor::MoveRight",
       "ctrl-l": "editor::ScrollCursorCenter",
       "alt-left": "editor::MoveToPreviousWordStart",
-      "alt-b": "editor::MoveToPreviousWordStart",
+      "ctrl-b": "editor::MoveToPreviousWordStart",
       "alt-right": "editor::MoveToNextWordEnd",
-      "alt-f": "editor::MoveToNextWordEnd",
+      "ctrl-f": "editor::MoveToNextWordEnd",
       "cmd-left": "editor::MoveToBeginningOfLine",
       "ctrl-a": "editor::MoveToBeginningOfLine",
       "cmd-right": "editor::MoveToEndOfLine",
@@ -100,13 +97,11 @@
       "shift-down": "editor::SelectDown",
       "ctrl-shift-n": "editor::SelectDown",
       "shift-left": "editor::SelectLeft",
-      "ctrl-shift-b": "editor::SelectLeft",
+      "ctrl-shift-b": "editor::SelectToPreviousWordStart",
       "shift-right": "editor::SelectRight",
-      "ctrl-shift-f": "editor::SelectRight",
+      "ctrl-shift-f": "editor::SelectToNextWordEnd",
       "alt-shift-left": "editor::SelectToPreviousWordStart", // cursorWordLeftSelect
-      "alt-shift-b": "editor::SelectToPreviousWordStart",
       "alt-shift-right": "editor::SelectToNextWordEnd", // cursorWordRightSelect
-      "alt-shift-f": "editor::SelectToNextWordEnd",
       "ctrl-shift-up": "editor::SelectToStartOfParagraph",
       "ctrl-shift-down": "editor::SelectToEndOfParagraph",
       "cmd-shift-up": "editor::SelectToBeginning",
@@ -121,7 +116,7 @@
       "shift-end": ["editor::SelectToEndOfLine", { "stop_at_soft_wraps": true }],
       "ctrl-shift-e": ["editor::SelectToEndOfLine", { "stop_at_soft_wraps": true }],
       "ctrl-v": ["editor::MovePageDown", { "center_cursor": true }],
-      "alt-v": ["editor::MovePageUp", { "center_cursor": true }],
+      "ctrl-shift-v": ["editor::MovePageUp", { "center_cursor": true }],
       "ctrl-cmd-space": "editor::ShowCharacterPalette",
       "cmd-;": "editor::ToggleLineNumbers",
       "cmd-alt-z": "editor::RevertSelectedHunks",
@@ -140,7 +135,7 @@
       "shift-enter": "editor::Newline",
       "cmd-enter": "editor::NewlineBelow",
       "cmd-shift-enter": "editor::NewlineAbove",
-      "alt-z": "editor::ToggleSoftWrap",
+      "cmd-k z": "editor::ToggleSoftWrap",
       "cmd-f": "buffer_search::Deploy",
       "cmd-alt-f": ["buffer_search::Deploy", { "replace_enabled": true }],
       "cmd-alt-l": ["buffer_search::Deploy", { "selection_search_enabled": true }],
@@ -191,7 +186,7 @@
       "cmd-k c": "assistant::CopyCode",
       "cmd-g": "search::SelectNextMatch",
       "cmd-shift-g": "search::SelectPrevMatch",
-      "alt-m": "assistant::ToggleModelSelector",
+      "cmd-shift-m": "assistant::ToggleModelSelector",
       "cmd-k h": "assistant::DeployHistory",
       "cmd-k l": "assistant::DeployPromptLibrary",
       "cmd-n": "assistant::NewContext"
@@ -364,7 +359,6 @@
       "cmd-k cmd-j": "editor::UnfoldAll",
       "ctrl-space": "editor::ShowCompletions",
       "cmd-.": "editor::ToggleCodeActions",
-      "alt-cmd-r": "editor::RevealInFileManager",
       "cmd-k r": "editor::RevealInFileManager",
       "cmd-k p": "editor::CopyPath",
       "cmd-\\": "pane::SplitRight",
@@ -457,7 +451,9 @@
   {
     "context": "Workspace && !Terminal",
     "bindings": {
-      "alt-t": "task::Rerun",
+      "cmd-shift-r": "task::Spawn",
+      "cmd-alt-r": "task::Rerun",
+      "alt-t": "task::Spawn",
       "alt-shift-t": "task::Spawn"
     }
   },
@@ -604,7 +600,7 @@
       "alt-cmd-r": "project_panel::RevealInFileManager",
       "ctrl-shift-enter": "project_panel::OpenWithSystem",
       "cmd-alt-backspace": ["project_panel::Delete", { "skip_prompt": false }],
-      "alt-shift-f": "project_panel::NewSearchInDirectory",
+      "cmd-shift-f": "project_panel::NewSearchInDirectory",
       "shift-down": "menu::SelectNext",
       "shift-up": "menu::SelectPrev",
       "escape": "menu::Cancel"