[Feature]: Make thread.archive bindable to a key #27718

thread.settle and thread.pin can be bound in keybindings.json (settle defaults to ⌘⇧S), but archive can't. The app already has thread.archive and thread.unarchive internally, but neither is in THREAD_KEYBINDING_COMMANDS, so archiving a thread means using the sidebar menu every time.

Ask: add thread.archive (and maybe thread.unarchive) to the bindable commands. A default shortcut would be nice, but being able to bind it is enough.