chore: follow up of web sso fix

lib/pages/homeserver_picker.dart

@@ -198,7 +198,7 @@ class HomeserverPickerController extends State<HomeserverPicker> {
           ssoHomeserverKey, Matrix.of(context).client.homeserver.toString());
     }
     final redirectUrl = kIsWeb
-        ? AppConfig.webBaseUrl
+        ? AppConfig.webBaseUrl + '/#/'
         : AppConfig.appOpenUrlScheme.toLowerCase() + '://login';
     launch(
       '${Matrix.of(context).client.homeserver?.toString()}/_matrix/client/r0/login/sso/redirect/${Uri.encodeComponent(id)}?redirectUrl=${Uri.encodeQueryComponent(redirectUrl)}',

lib/widgets/layouts/loading_view.dart

@@ -7,10 +7,14 @@ class LoadingView extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     if (Matrix.of(context).loginState != null) {
-      WidgetsBinding.instance.addPostFrameCallback((_) => context.vRouter.push(
+      WidgetsBinding.instance.addPostFrameCallback(
+        (_) => context.vRouter.push(
           Matrix.of(context).loginState == LoginState.logged
               ? '/rooms'
-              : '/home'));
+              : '/home',
+          queryParameters: VRouter.of(context).queryParameters,
+        ),
+      );
     }
     return Scaffold(body: Center(child: CircularProgressIndicator()));
   }

lib/widgets/matrix.dart

@@ -330,8 +330,10 @@ class MatrixState extends State<Matrix> with WidgetsBindingObserver {
             .contains(widget.router.currentState.url);
         if (widget.router.currentState.url == '/' ||
             (state == LoginState.logged) == isInLoginRoutes) {
-          widget.router.currentState
-              .push(loginState == LoginState.logged ? '/rooms' : '/home');
+          widget.router.currentState.push(
+            loginState == LoginState.logged ? '/rooms' : '/home',
+            queryParameters: widget.router.currentState.queryParameters,
+          );
         }
       }
     });