New room list: add space menu in room header (#29352)

* feat(new room list): add space menu in view model

* test(new room list): add space menu in view model

* feat(new room list): add space menu in room list header

* chore: update i18n

* test(new room list): add tests for space menu

* test(new room list): update room list tests

* test(e2e): add tests for space menu

res/css/views/rooms/RoomListView/_RoomListHeaderView.pcss

@@ -17,4 +17,16 @@
     button {
         color: var(--cpd-color-icon-secondary);
     }
+
+    .mx_SpaceMenu_button {
+        svg {
+            transition: transform 0.1s linear;
+        }
+    }
+
+    .mx_SpaceMenu_button[aria-expanded="true"] {
+        svg {
+            transform: rotate(180deg);
+        }
+    }
 }