feat: wallpaper padrao nas conversas, logo colorida na sidebar e ajustes na aba de espacos

lib/pages/chat/chat_event_list.dart

@@ -13,7 +13,6 @@ import 'package:tatchat/pages/chat/encryption_info.dart';
 import 'package:tatchat/pages/chat/events/message.dart';
 import 'package:tatchat/pages/chat/seen_by_row.dart';
 import 'package:tatchat/pages/chat/typing_indicators.dart';
-import 'package:tatchat/utils/account_config.dart';
 import 'package:tatchat/utils/matrix_sdk_extensions/filtered_timeline_extension.dart';
 import 'package:tatchat/utils/platform_infos.dart';
 import 'package:material_ui/material_ui.dart';
@@ -53,8 +52,7 @@ class ChatEventList extends StatelessWidget {
       thisEventsKeyMap[events[i].eventId] = i;
     }
 
-    final hasWallpaper =
-        controller.room.client.applicationAccountConfig.wallpaperUrl != null;
+    const hasWallpaper = true;
 
     return SelectionArea(
       child: MediaQuery(