c899453800
This drops the requirement that SwitcherPopups need a modifier based keybinding to work. The existing behavior for modifier based keybindings is kept but if the popup is triggered from a no modifiers keybinding, instead of finishing when the modifier is released, we use a timer that automatically finishes the popup. The timer is reset on every key release to allow navigation to happen. https://bugzilla.gnome.org/show_bug.cgi?id=783550