Simplify the handle component and use the provided data attributes to style the handles correctly.
Fixes a styling issue where you if you hover at the T-junction between two handles, only one brightens up.
- Rework hotkey data to include the keys for each hotkey action.
- Add wrapper for `useHotkeys` that accepts a hotkey category and id. Automatically selects the key from the hotkey data.
- Add handling for macOS (cmd vs ctrl, option vs alt).
- Redo all hotkey descriptions, deleting nonexistant ones.
- Some `esc` hotkeys that just close whatever you are currently in are omitted due to their relative simplicity and intuitiveness.
- Canvas manages its own progress socket event listeners and progress event data.
- Remove cancellations listener jank.
- Dip into low-level redux subscription API to watch for queue status changes, clearing the last "global" progress event when the queue has nothing in progress. Could also do this in a useEffect I guess.
- Had to shuffle some things around to prevent circular imports, so there are a lot of tiny changes here.
TBH not sure exactly why this broke. Fixed by rollback back the use of a render prop in favor of global state. Also revised the API of `useBoolean` and `buildUseBoolean`.
- Canvas generation mode is replace with a boolean `sendToCanvas` flag. When off, images generated on the canvas go to the gallery. When on, they get added to the staging area.
- When an image result is received, if its destination is the canvas, staging is automatically started.
- Updated queue list to show the destination column.
- Added `IconSwitch` component to represent binary choices, used for the new `sendToCanvas` flag and image viewer toggle.
- Remove the queue actions menu in `QueueControls`. Move the queue count badge to the cancel button.
- Redo layout of `QueueControls` to prevent duplicate queue count badges.
- Fix issue where gallery and options panels could show thru transparent regions of queue tab.
- Disable panel hotkeys when on mm/queue tabs.
