route avatar crop and profile view through AppRoutes

lib/view/pages/settings/sections/account_section.dart

@@ -5,6 +5,7 @@ import '../../../../api/marianumcloud/cloud_users/cloud_users_actions.dart';
 import '../../../../api/marianumconnect/queries/auth_logout/auth_logout.dart';
 import '../../../../model/account_data.dart';
 import '../../../../push/push_registration.dart';
+import '../../../../routing/app_routes.dart';
 import '../../../../state/app/modules/account/bloc/account_bloc.dart';
 import '../../../../state/app/modules/account/bloc/account_state.dart';
 import '../../../../widget/app_progress_indicator.dart';
@@ -12,7 +13,6 @@ import '../../../../widget/async_action_button.dart';
 import '../../../../widget/avatar_actions_sheet.dart';
 import '../../../../widget/confirm_dialog.dart';
 import '../../../../widget/demo_restricted.dart';
-import '../../../../widget/large_profile_picture_view.dart';
 import '../../../../widget/user_avatar.dart';
 
 // Display-name is process-wide stable until the user logs out; cache it so
@@ -107,12 +107,8 @@ class _AccountSectionState extends State<AccountSection> {
                   children: [
                     Center(
                       child: GestureDetector(
-                        onTap: () => Navigator.of(context).push(
-                          MaterialPageRoute<void>(
-                            builder: (_) =>
-                                LargeProfilePictureView(id: username),
-                          ),
-                        ),
+                        onTap: () =>
+                            AppRoutes.openLargeProfilePicture(context, username),
                         child: UserAvatar(
                           key: ValueKey(_avatarVersion),
                           id: username,