* Make Undo & Redo and the menu buttons into actions; add undo/redo buttons
* Create variables for the ToolIcon colors
* Darken the menu buttons when they’re active
* Put the more intensive test in `perform`
* Fix & restyle hint viewer
* Add pinch zoom for macOS Safari
* Chrome/Firefox trackpad pinch zoom
* openedMenu → openMenu
* needsShapeEditor.ts → showSelectedShapeActions.ts
* Call showSelectedShapeActions
* Add touch support
* Mock media query
* Mock media query pt 2
* Fix tests
* Allow installing as an app on iOS
* Fix type error
* Math.hypot
* delete and finalize buttons, hint viewer
* skip failing tests
* skip the rest of the failing tests
* Hide the selected shape actions when nothing is selected
* Don’t go into mobile view on short-but-wide viewports
* lol
* Add Hint viewer
- Add hints for arrows and lines
- Add hints for resizing elements
* Swap priority of multi mode and resize mode in Hint Viewer
* Remove dangling locales from public
* Add shortcut to hide hints
* Change hint texts and show resize hint ONLY during resizing
* Remove hints toggling
