Refresh Google calendars after OAuth return

lib/google_calendar_page.dart

@@ -24,18 +24,48 @@ class AccountsPage extends StatefulWidget {
   State<AccountsPage> createState() => _AccountsPageState();
 }
 
-class _AccountsPageState extends State<AccountsPage> {
+class _AccountsPageState extends State<AccountsPage> with WidgetsBindingObserver {
   List<GoogleCalendarInfo> googleCalendars = [];
   bool loadingCalendars = false;
   bool syncing = false;
+  bool waitingForGoogleAuthReturn = false;
   String? statusMessage;
 
   @override
   void initState() {
     super.initState();
+    WidgetsBinding.instance.addObserver(this);
     _loadGoogleConnectionStatus();
   }
 
+  @override
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(covariant AccountsPage oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    final settingsChanged =
+        oldWidget.jarvisSettings.apiUrl != widget.jarvisSettings.apiUrl ||
+        oldWidget.jarvisSettings.apiToken != widget.jarvisSettings.apiToken ||
+        oldWidget.jarvisSettings.workspaceToken !=
+            widget.jarvisSettings.workspaceToken;
+    if (settingsChanged) {
+      _loadGoogleConnectionStatus();
+    }
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    super.didChangeAppLifecycleState(state);
+    if (state == AppLifecycleState.resumed && waitingForGoogleAuthReturn) {
+      waitingForGoogleAuthReturn = false;
+      _loadGoogleConnectionStatus();
+    }
+  }
+
   GoogleCalendarConnection? get connection =>
       widget.connections.isEmpty ? null : widget.connections.first;
 
@@ -157,9 +187,10 @@ class _AccountsPageState extends State<AccountsPage> {
       if (!launched) throw Exception('Nem siker\u00fclt megnyitni a b\u00f6ng\u00e9sz\u0151t.');
       if (!mounted) return;
       setState(() {
+        waitingForGoogleAuthReturn = true;
         loadingCalendars = false;
         statusMessage =
-            'A Google enged\u00e9lyez\u00e9s b\u00f6ng\u00e9sz\u0151ben megny\u00edlt. Ha k\u00e9sz, t\u00e9rj vissza ide \u00e9s friss\u00edtsd a napt\u00e1rlist\u00e1t.';
+            'A Google enged\u00e9lyez\u00e9s b\u00f6ng\u00e9sz\u0151ben megny\u00edlt. Ha k\u00e9sz, t\u00e9rj vissza ide, \u00e9s automatikusan bet\u00f6lt\u00f6m a napt\u00e1rlist\u00e1t.';
       });
     } catch (error) {
       if (!mounted) return;