feat: tela de apps com logos/menu de exclusao, correcao de tema nas mini apps e sidebar de navegacao

lib/pages/apps/miniapp_shell_web.dart

@@ -5,7 +5,7 @@
 import 'dart:js_interop';
 import 'dart:ui_web' as ui_web;
 
-import 'package:flutter/material.dart';
+import 'package:material_ui/material_ui.dart';
 import 'package:tatchat/l10n/l10n.dart';
 import 'package:tatchat/utils/miniapp_bridge.dart';
 import 'package:web/web.dart' as web;
@@ -132,8 +132,9 @@ class _MiniAppShellState extends State<MiniAppShell> {
     return Scaffold(
       appBar: AppBar(
         title: Text(widget.title),
-        backgroundColor: theme.colorScheme.primary,
-        foregroundColor: theme.colorScheme.onPrimary,
+        backgroundColor: theme.colorScheme.surface,
+        surfaceTintColor: Colors.transparent,
+        foregroundColor: theme.colorScheme.onSurface,
         actions: [
           IconButton(
             tooltip: L10n.of(context).refresh,