The old bash bin short-circuited with close_visible_quickshell_menu at
the top of open_quickshell_menu, so pressing any menu keybind while the
menu was open just closed it. The IPC path I introduced summoned every
time, so keyboard shortcuts couldn't dismiss \u2014 only outside clicks did
(which is why the bar icon appeared to toggle: clicking it while the
menu was open hit the menu's outer-click MouseArea, not the icon).
Add a menu.toggle IPC method:
- if root.opened: cancel() and return "closed"
- otherwise: behaves exactly like summon
Switch every Hyprland binding and the two bar-icon click handlers
(omarchy logo, battery right-click \u2192 power menu) to toggle. summon stays
as the always-open primitive for callers that want explicit summon
semantics (rare \u2014 right now nothing internal uses it).