* fix: Use dynamic bindings list in omarchy-menu-keybindings
We can use `hyprctl binds` to get a dynamic list of the currently-set
key bindings. This allows for a custom user configuration that is
split into arbitrary config files, and which makes use of `unbind` to
remove default Omarchy key bindings.
* chore: Support optional description for key bindings
If the description is present, use it in the key
bindings menu, instead of displaying some version
of the dispatched command.
* chore: Add some key binding description strings
