Add new command menu to studio. Ports over commands from old menu (with some minor reorganization), then adds: - Branch switcher - Project switcher
Co-authored-by: Francesco Sansalvadore <f.sansalvadore@gmail.com>
Introduces the first (very small) slice of the new command menu as a `ui-pattern`. This slice just handles state for available commands. It isn't hooked up to anything yet.
Charis