Fix collapsing account with keyboard

When collapsing the account and the current page/focus is a room of this
account, switch focus to the account.

TODO.md

@@ -11,7 +11,6 @@
   - When qml syntax highlighting supports ES6 string interpolation, use them
 
 - Fixes
-  - Collapsing last account with shortcut when focused on room
   - Missing hourglass when changing avatar and applying
   - Icons on KDE
   - Greentext for local echo

src/qml/SidePane/SidePaneList.qml

@@ -88,6 +88,7 @@ HListView {
             {
                 currentIndex = i
                 currentItem.item.toggleCollapse()
+                activate()
             }
         }
     }