Add bound checks for resizing right dock (#32246)

smaster created 

Closes #30293


[Before](https://github.com/user-attachments/assets/0b95e317-391a-4d90-ba78-ed3d4f10871d)
|
[After](https://github.com/user-attachments/assets/23002a73-103c-4a4f-a7a1-70950372c9d9)

Release Notes:

- Fixed right panel expanding in backwards, when dragged out of its
intended bounds, by adding a bounds check to ensure its size never gets
to high.

Change summary

crates/workspace/src/workspace.rs | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

Detailed changes

crates/workspace/src/workspace.rs 🔗 

@@ -6255,7 +6255,15 @@ fn resize_right_dock(
     window: &mut Window,
     cx: &mut App,
 ) {
-    let size = new_size.max(workspace.bounds.left() - RESIZE_HANDLE_SIZE);
+    let mut size = new_size.max(workspace.bounds.left() - RESIZE_HANDLE_SIZE);
+    workspace.left_dock.read_with(cx, |left_dock, cx| {
+        let left_dock_size = left_dock
+            .active_panel_size(window, cx)
+            .unwrap_or(Pixels(0.0));
+        if left_dock_size + size > workspace.bounds.right() {
+            size = workspace.bounds.right() - left_dock_size
+        }
+    });
     workspace.right_dock.update(cx, |right_dock, cx| {
         if WorkspaceSettings::get_global(cx)
             .resize_all_panels_in_dock