* Add Action System
- Add keyboard test
- Add context menu label
- Add PanelComponent
* Show context menu items based on actions
* Add render action feature
- Replace bringForward etc buttons with action manager render functions
* Move all property changes and canvas into actions
* Remove unnecessary functions and add forgotten force update when elements array change
* Extract export operations into actions
* Add elements and app state as arguments to `keyTest` function
* Add key priorities
- Sort actions by key priority when handling key presses
* Extract copy/paste styles
* Add Context Menu Item order
- Sort context menu items based on menu item order parameter
* Remove unnecessary functions from App component
* Make panels collapsible
- Add Panel component with collapse logic
- Use the component in all the necessary panel groups
* Remove unnecessary container from PanelCanvas
* Add "hide property" to Pane component to hide Panel contents using a prop
- Instead of doing conditional rendering, pass the condition to Panel as props
* Change collapse icon rotation for closed
- Use one icon and use CSS transforms to rotate it
* Remove unnecessary imports from PanelSelection
