Merge pull request #745 from krille-chan/krille/hide-add-subspace-button-if-not-admin

chore: Follow up add chat subspace button

lib/pages/chat_list/space_view.dart

@@ -264,6 +264,11 @@ class _SpaceViewState extends State<SpaceView> {
   Widget build(BuildContext context) {
     final client = Matrix.of(context).client;
     final activeSpaceId = widget.controller.activeSpaceId;
+    final activeSpace = activeSpaceId == null
+        ? null
+        : client.getRoomById(
+            activeSpaceId,
+          );
     final allSpaces = client.rooms.where((room) => room.isSpace);
     if (activeSpaceId == null) {
       final rootSpaces = allSpaces
@@ -446,12 +451,17 @@ class _SpaceViewState extends State<SpaceView> {
                             ),
                             onTap: () => _onJoinSpaceChild(spaceChild),
                           ),
+                          if (activeSpace?.canChangeStateEvent(
+                                EventTypes.spaceChild,
+                              ) ==
+                              true)
                             Material(
                               child: ListTile(
                                 leading: const CircleAvatar(
                                   child: Icon(Icons.group_add_outlined),
                                 ),
-                              title: Text(L10n.of(context)!.addChatOrSubSpace),
+                                title:
+                                    Text(L10n.of(context)!.addChatOrSubSpace),
                                 trailing:
                                     const Icon(Icons.chevron_right_outlined),
                                 onTap: _addChatOrSubSpace,