Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Antonio <antonio@zed.dev>

If you highlight the following block of text (with a single selection):

```
The quick brown
fox jumps over
the lazy dog
```

and run `editor: convert to upper camel case`, you'll get:

```
TheQuickBrown
foxJumpsOver
theLazyDog
```

instead of:

```
TheQuickBrown
FoxJumpsOver
TheLazyDog
```

The same thing happens for `editor: convert to title case`. This happens
because [`to_case` crate](https://crates.io/crates/convert_case) doesn't
allow the user to define '\n' as a boundary. I wanted to fix this at the
lib level, so I filled [an
issue](https://github.com/rutrum/convert-case/issues/16) but I never
heard back. What's strange is VS Code and Sublime I think both exhibit
the same output as we do currently, but I don't personally think this
feels right (happy to hear opposing opinions). I'm just doing the naive
thing to hack around this limitation of the `to_case` crate.

I did some testing and it seems I only need to adjust `editor: convert
to title case` and `editor: convert to upper camel case`. The way the
other transformations are implemented in `to_case` don't seem to have
this issue.

Release Notes:

- Fixed a bug where running certain text transfomration commands on a
single selection covering multiple lines would not transform all
selected lines as expected.

Deals with https://github.com/zed-industries/community/issues/2086
Part of https://github.com/zed-industries/community/issues/351

Initial:
<img width="585" alt="Screenshot 2023-09-28 at 09 50 05"
src="https://github.com/zed-industries/zed/assets/2690773/e0149312-dfe3-4b7c-948c-0f593d6f540c">
First query letter input (only two history items match that, both are
preserved on top, with their order preserved also)
<img width="603" alt="Screenshot 2023-09-28 at 09 50 08"
src="https://github.com/zed-industries/zed/assets/2690773/85ab2f4c-bb9c-4811-b8b0-b5c14a370ae2">
Second query letter input, no matching history items:
<img width="614" alt="Screenshot 2023-09-28 at 09 50 11"
src="https://github.com/zed-industries/zed/assets/2690773/6d380403-a43c-4f00-a05b-88f43f91fefb">
Remove second query letter, history items match again and pop to the
top:
<img width="574" alt="Screenshot 2023-09-28 at 09 50 15"
src="https://github.com/zed-industries/zed/assets/2690773/5981ca53-6bc8-4305-ae36-27144080e1a2">


* allows `file_finder::Toggle` (cmd-p by default) to cycle through file
finder items (ESC closes the modal still)
* on query typing, preserve history items that match the query and keep
them on top, with their ordering preserved
* show history items' matched letters

Release Notes:

- Improve file finder ergonomics: allow cycle through items with the
toggle action, preserve matching history items on query input

Release Notes:

- N/A

For zed-industries/community#1746

vimify all the things

For zed-industries/community#1732

For zed-industries/community#1411
For zed-industries/community#619

- don't prompt to save a set of unchanged files when closing
(preview-only)

Reverts zed-industries/zed#3040

Reverts zed-industries/zed#3046

Regressed:
<img width="422" alt="CleanShot 2023-09-27 at 11 07 37@2x"
src="https://github.com/zed-industries/zed/assets/30666851/636d7bec-4518-45e6-87bd-84b45dda28e1">

Fixed:
<img width="424" alt="CleanShot 2023-09-27 at 11 04 13@2x"
src="https://github.com/zed-industries/zed/assets/30666851/186a1d49-4daf-4211-891a-dacfd1144311">

Release Notes:

- N/A

Release Notes:

- Reordered items in project and buffer search bar

Augment current search strategy in semantic search, reducing search
times by ~60%

Release Notes:

- Implemented minimum batch sizes for concurrent database reads.
- Batch embedding matrix multiplication.
- Calculate matmul with ndarray

- vim: Fix ctrl-d/ctrl-u to match vim (when :set scrolloff=3)

remove small dbg! statement in main