This PR builds off of an earlier version of
https://github.com/zed-industries/zed/pull/9595, rearranges some of the
logic, and removes an unused platform API.
Release Notes:
- N/A
---------
Co-authored-by: apricotbucket28 <agustin.nicolas.marcos@outlook.com>
Fixes#9089.
On linux, pressing shift and tab together can potentially produce
`ISO_Left_Tab`. This PR maps this key to "tab" with the shift modifier,
similar to `SHIFT_TAB_KEY` in gpui::platform::mac::events.
Note: The [default linux
keymaps](https://github.com/zed-industries/zed/blob/main/assets/keymaps/default-linux.json)
have shift-tab mapped to editor::TabPrev and ctrl-[ mapped to
editor::Outdent. Both actions appear to have the same effect.
Release Notes:
- Support shift-tab on linux (#9089).
Fix an issue where the `ime_key` is sometimes an empty string, and
pressing a keystroke replaces the selected text.
E.g. select some text, press `Escape`: selected text is deleted.
