Initial web socket client support

frontend/lib/features/room/game_room.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:frontend/providers/auth.dart';
+import 'package:frontend/providers/game_messages.dart';
 import 'package:go_router/go_router.dart';
 import 'package:logging/logging.dart';
 
@@ -18,25 +19,19 @@ class GameRoomHome extends ConsumerStatefulWidget {
 class _GameRoomHomeState extends ConsumerState<GameRoomHome> {
   @override
   Widget build(BuildContext context) {
-    final jwtAsync = ref.watch(jwtNotifierProvider);
-    return Scaffold(
-      body: jwtAsync.when(
-        data: (jwt) {
-          if (jwt == null || jwt.roomUuid != widget.roomUuid) {
-            logger.fine('Tried to open room, but not authenticated / wrong room');
-            // return home
-            context.go('/');
-          }
-          return Column(
-            children: [
-              Text('Authenticated.'),
-              Text('Welcome to room ${widget.roomUuid}'),
-            ],
-          );
-        },
-        loading: () => CircularProgressIndicator(),
-        error: (e, st) => Text('$e, $st'),
-      ),
+    final jwt = ref.watch(jwtBodyProvider);
+    if (jwt == null || jwt.roomUuid != widget.roomUuid) {
+      logger.fine('Tried to open room, but not authenticated / wrong room');
+      // return home
+      context.go('/');
+    }
+    // enstablish ws connection at /room/roomCode/ws and save to gameMessageProvider
+    ref.read(gameMessageNotifierProvider.notifier).connect(jwt!.roomUuid);
+    return Column(
+      children: [
+        Text('Authenticated.'),
+        Text('Welcome to room ${widget.roomUuid}'),
+      ],
     );
   }
 }