Fix menu/popup destruction disabling keybinds

TODO.md

@@ -12,7 +12,6 @@
 
 - Replying to one of our own message that's currently only a local echo
   results in a reply to an empty ID
-- Need to unregister popups/menus when they are destroyed without being closed
 
 - Bottom focus line for an `HTextArea` inside a `ScrollView` is invisible,
   put the background on `ScrollView` instead?

src/gui/Base/HMenu.qml

@@ -41,6 +41,7 @@ Menu {
         delete window.visibleMenus[uuid]
         window.visibleMenusChanged()
     }
+    Component.onDestruction: closed()
 
 
     property var previouslyFocused: null

src/gui/Base/HPopup.qml

@@ -43,6 +43,7 @@ Popup {
         delete window.visiblePopups[uuid]
         window.visibleMenusChanged()
     }
+    Component.onDestruction: closed()
 
 
     property var previouslyFocused: null