* Implement shell interaction commands
* Use slice instead of iterator for shell invocation
* Default to `sh` instead of `$SHELL` for shell commands
* Enforce trailing comma in `commands` macro
* Use `|` register for shell commands
* Move shell config to `editor` and use in command
* Update shell command prompts
* Remove clone of shell config
* Change shell function names to match prompts
* Log stderr contents upon external command error
* Remove `unwrap` calls on potential common errors
`shell` will no longer panic if:
* The user-configured shell cannot be found
* The shell command does not output UTF-8
* Remove redundant `pipe` parameter
* Rename `ShellBehavior::None` to `Ignore`
* Display error when shell command is used and `shell = []`
* Document shell commands in `keymap.md`
* feat: merge default languages.toml with user provided languages.toml
* refactor: use catch-all to override all other values for merge toml
* tests: add a test case for merging languages configs
* refactor: change test module name
* Refactor new Rect construction
Introduces methods that can be chained to construct new Rects
out of pre-existing ones
* Clamp x and y to edges in Rect chop methods
* Rename Rect clipping functions
* Add preview pane for fuzzy finder
* Fix picker preview lag by caching
* Add picker preview for document symbols
* Cache picker preview per document instead of view
* Use line instead of range for preview doc
* Add picker preview for buffer picker
* Fix render bug and refactor picker
* Refactor picker preview rendering
* Split picker and preview and compose
The current selected item is cloned on every event, which is
undesirable
* Refactor out clones in previewed picker
* Retrieve doc from editor if possible in filepicker
* Disable syntax highlight for picker preview
Files already loaded in memory have syntax highlighting enabled
* Ignore directory symlinks in file picker
* Cleanup unnecessary pubs and derives
* Remove unnecessary highlight from file picker
* Reorganize buffer rendering
* Use normal picker for code actions
* Remove unnecessary generics and trait impls
* Remove prepare_for_render and make render mutable
* Skip picker preview if screen small, less padding