Add about page

lib/core/router/app_router.dart

@@ -39,6 +39,7 @@ int getCurrentIndex(BuildContext context) {
   if (location.startsWith(ProxiesRoute.path)) return 1;
   if (location.startsWith(LogsRoute.path)) return 2;
   if (location.startsWith(SettingsRoute.path)) return 3;
+  if (location.startsWith(AboutRoute.path)) return 4;
   return 0;
 }
 
@@ -52,5 +53,7 @@ void switchTab(int index, BuildContext context) {
       const LogsRoute().go(context);
     case 3:
       const SettingsRoute().go(context);
+    case 4:
+      const AboutRoute().go(context);
   }
 }

lib/core/router/routes/desktop_routes.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:hiddify/core/router/routes/shared_routes.dart';
+import 'package:hiddify/features/about/view/view.dart';
 import 'package:hiddify/features/logs/view/view.dart';
 import 'package:hiddify/features/settings/view/view.dart';
 import 'package:hiddify/features/wrapper/wrapper.dart';
@@ -20,6 +21,7 @@ part 'desktop_routes.g.dart';
     TypedGoRoute<ProxiesRoute>(path: ProxiesRoute.path),
     TypedGoRoute<LogsRoute>(path: LogsRoute.path),
     TypedGoRoute<SettingsRoute>(path: SettingsRoute.path),
+    TypedGoRoute<AboutRoute>(path: AboutRoute.path),
   ],
 )
 class DesktopWrapperRoute extends ShellRouteData {
@@ -50,3 +52,13 @@ class SettingsRoute extends GoRouteData {
     return const NoTransitionPage(child: SettingsPage());
   }
 }
+
+class AboutRoute extends GoRouteData {
+  const AboutRoute();
+  static const path = '/about';
+
+  @override
+  Page<void> buildPage(BuildContext context, GoRouterState state) {
+    return const NoTransitionPage(child: AboutPage());
+  }
+}

lib/core/router/routes/mobile_routes.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:hiddify/core/router/routes/shared_routes.dart';
+import 'package:hiddify/features/about/view/view.dart';
 import 'package:hiddify/features/logs/view/view.dart';
 import 'package:hiddify/features/settings/view/view.dart';
 import 'package:hiddify/features/wrapper/wrapper.dart';
@@ -60,3 +61,19 @@ class SettingsRoute extends GoRouteData {
     );
   }
 }
+
+@TypedGoRoute<AboutRoute>(path: AboutRoute.path)
+class AboutRoute extends GoRouteData {
+  const AboutRoute();
+  static const path = '/about';
+
+  static final GlobalKey<NavigatorState> $parentNavigatorKey = rootNavigatorKey;
+
+  @override
+  Page<void> buildPage(BuildContext context, GoRouterState state) {
+    return const MaterialPage(
+      fullscreenDialog: true,
+      child: AboutPage(),
+    );
+  }
+}