feat: Enhance user permissions handling when no users on server

lib/auth.dart

@@ -16,6 +16,7 @@ class AuthInfo {
   ServerStatus? get status => _status;
   Token? _token;
   Token? get token => _token;
+  bool? get noUser => _status?.noUser;
   SharedToken? _sharedToken;
   SharedToken? get sharedToken => _sharedToken;
   bool get isAuthed => (_user != null);
@@ -26,14 +27,18 @@ class AuthInfo {
   bool? get isAdmin => _user?.isAdmin;
   bool? get isRoot => _user != null ? _user!.id == 0 : null;
   bool? get isDocker => _status?.isDocker;
-  bool? get canReadGallery =>
-      _user?.permissions.has(UserPermission.readGallery);
-  bool? get canEditGallery =>
-      _user?.permissions.has(UserPermission.editGallery);
-  bool? get canDeleteGallery =>
-      _user?.permissions.has(UserPermission.deleteGallery);
-  bool? get canManageTasks =>
-      _user?.permissions.has(UserPermission.manageTasks);
+  bool? get canReadGallery => noUser == true
+      ? true
+      : _user?.permissions.has(UserPermission.readGallery);
+  bool? get canEditGallery => noUser == true
+      ? true
+      : _user?.permissions.has(UserPermission.editGallery);
+  bool? get canDeleteGallery => noUser == true
+      ? true
+      : _user?.permissions.has(UserPermission.deleteGallery);
+  bool? get canManageTasks => noUser == true
+      ? true
+      : _user?.permissions.has(UserPermission.manageTasks);
   bool? get canShareGallery =>
       _user?.permissions.has(UserPermission.shareGallery);
   MeilisearchInfo? get meilisearch => _status?.meilisearch;

lib/dialog/new_user_page.dart

@@ -92,6 +92,9 @@ class _NewUserPage extends State<NewUserPage> {
     }
     final i18n = AppLocalizations.of(context)!;
     final maxWidth = MediaQuery.of(context).size.width;
+    if (auth.noUser == true) {
+      _isAdmin = true;
+    }
     return Container(
       padding: maxWidth < 400
           ? const EdgeInsets.symmetric(vertical: 20, horizontal: 5)
@@ -159,16 +162,18 @@ class _NewUserPage extends State<NewUserPage> {
                     },
                     obscureText: !_passwordVisible,
                   )),
-                  auth.isRoot == true
+                  auth.isRoot == true || auth.noUser == true
                       ? _buildWithVecticalPadding(LabeledCheckbox(
                           value: _isAdmin,
-                          onChanged: (b) {
-                            if (b != null) {
-                              setState(() {
-                                _isAdmin = b;
-                              });
-                            }
-                          },
+                          onChanged: auth.noUser == true
+                              ? null
+                              : (b) {
+                                  if (b != null) {
+                                    setState(() {
+                                      _isAdmin = b;
+                                    });
+                                  }
+                                },
                           label: Text(i18n.admin)))
                       : Container(),
                   !_isAdmin

lib/globals.dart

@@ -238,7 +238,7 @@ List<PopupMenuEntry<MoreVertSettings>> buildMoreVertSettings(
     list.add(PopupMenuItem(
         value: MoreVertSettings.taskManager, child: Text(i18n.taskManager)));
   }
-  if (path != "/sessions") {
+  if (path != "/sessions" && auth.noUser != true) {
     list.add(PopupMenuItem(
         value: MoreVertSettings.sessions, child: Text(i18n.sessionManagemant)));
   }

lib/pages/home.dart

@@ -42,7 +42,7 @@ class HomeDrawer extends StatelessWidget {
                 },
               )
             : Container(),
-        auth.isAdmin == true
+        auth.isAdmin == true || auth.noUser == true
             ? ListTile(
                 leading: const Icon(Icons.manage_accounts),
                 title: Text(i18n.userManagemant),

lib/pages/settings.dart

@@ -85,7 +85,7 @@ class _SettingsPage extends State<SettingsPage>
                     onTap: () {
                       context.push("/settings/cache");
                     }),
-                auth.isAdmin == true
+                auth.isAdmin == true || auth.noUser == true
                     ? ListTile(
                         leading: const Icon(Icons.admin_panel_settings),
                         title: Text(i18n.server),