Move isMacLike and prettifyShortcut out of command_palette into plug-api/lib/shortcut so the configuration manager's shortcuts UI can render identical key notation.
Extracts almost all codemirror keyboard shortcuts into proper SB
commands so they can be rebound
Bonus: renders prettier versions of keyboard shortcuts on Mac
* Removed code complete from mini editor (didn't really work anyway, and
only use case was emoji)
* Changed meta picker to be more consistent with page picker
* Alt-space completion in page picker (completes "folder" to the top
match)
* Upgraded fuse library
* Removed the category support in the filterbox, it was buggy and hides
command names
* Tweaked fuse parameters for (hopefully) better matches in the page
picker (and everywhere where the filter box is used)
Zef Hemel