fix: update GitHub Pages build command to use release mode and clean up meta tag manager implementation

Author: orestesgaolin

.github/workflows/deploy.yml

@@ -45,7 +45,7 @@ jobs:
         dart scripts/generate_sitemap.dart
 
     - name: Build for GitHub Pages (with SPA routing)
-      run: dart scripts/build_github_pages.dart
+      run: dart scripts/build_github_pages.dart --release
 
     - name: Verify SPA routing files
       run: |

lib/meta/meta_tag_manager.dart

@@ -3,11 +3,6 @@ import 'meta_tag_manager_stub.dart'
     if (dart.library.html) 'meta_tag_manager_web.dart'
     if (dart.library.js_interop) 'meta_tag_manager_web.dart';
 
-/// Creates the appropriate meta tag manager implementation for the current platform
-MetaTagManagerInterface createMetaTagManager() {
-  return MetaTagManagerStub();
-}
-
 /// Factory class that provides the appropriate meta tag manager based on platform
 class MetaTagManager {
   static MetaTagManagerInterface? _instance;

lib/shader_screen.dart

@@ -1,8 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
-import 'package:go_router/go_router.dart';
-import 'package:shaders/widgets/details_top_menu.dart';
-import 'package:url_launcher/url_launcher.dart';
 import 'widgets/widgets.dart';
 import 'main.dart';
 import 'shader_source_viewer.dart';
@@ -35,7 +32,7 @@ class ShaderScreen extends StatelessWidget {
 
   Widget _buildTopMenu(BuildContext context) {
     return Container(
-            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
       decoration: BoxDecoration(
         border: Border(
           bottom: BorderSide(

lib/widgets/shader_animation_view.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_shaders/flutter_shaders.dart';
-import 'package:shaders/tv_test_screen.dart';
 import '../main.dart';
 
 /// A widget that handles the animation and rendering of a shader.