* ad plugin override_layout command
* watch available layouts and report to plugin thread
* Event::AvailableLayoutInfo
* save layout command
* refactor save_layout
* fix api and permissions
* delete_layout API command
* edit layout in place API
* edit layout response through api
* propagate layout parsing errors
* generate random name plugin api
* dump stringified layout API
* synchronicity dump_session_layout and include LayoutMetadata in sync response
* parse_layout plugin api
* fix: default to default layout dir in plugin api
* rename_layout plugin command API
* initial implementation of multi-tab override
* apply to multiple tabs
* allow applying to only the active tab
* add tab/pane names to layout parsing metadata
* indicate is_builtin_plugin in PaneMetadata
* get_layout_dir plugin API command
* consolidate (and fix) is_builtin_plugin logic
* fix bad ret
* allow dumping the layout for just a specific tab in the session
* get focused pane and tab sync api
* color last substring variants
* add plugin
* update assets
* fix tests
* add e2e tests for new plugin apis
* update ui with new shortcut
* rustfmt
* docs(changelog): add PR
