refactor: redo the environment system.

lib/firebase_options.dart

@@ -3,7 +3,7 @@
 import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
 import 'package:flutter/foundation.dart'
     show defaultTargetPlatform, kIsWeb, TargetPlatform;
-import 'package:revanced_manager/utils/env_class.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 /// Default [FirebaseOptions] for use with your Firebase apps.
 ///
@@ -54,8 +54,8 @@ class DefaultFirebaseOptions {
   }
 
   static FirebaseOptions android = FirebaseOptions(
-    apiKey: Env.apiKey,
-    appId: Env.appId,
+    apiKey: dotenv.env['apiKey'] ?? '',
+    appId: dotenv.env['appId'] ?? '',
     messagingSenderId: '1006104807752',
     projectId: 'revanced-manager',
     storageBucket: 'revanced-manager.appspot.com',

lib/main.dart

@@ -9,14 +9,15 @@ import 'package:revanced_manager/services/patcher_api.dart';
 import 'package:revanced_manager/services/revanced_api.dart';
 import 'package:revanced_manager/ui/theme/dynamic_theme_builder.dart';
 import 'package:revanced_manager/ui/views/navigation/navigation_view.dart';
-import 'package:revanced_manager/utils/env_class.dart';
 import 'package:stacked_themes/stacked_themes.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
 import 'package:timezone/data/latest.dart' as tz;
 import 'package:firebase_core/firebase_core.dart';
 import 'firebase_options.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 Future main() async {
+  await dotenv.load(fileName: ".env");
   await ThemeManager.initialise();
   await setupLocator();
   WidgetsFlutterBinding.ensureInitialized();
@@ -45,7 +46,7 @@ Future main() async {
   await SentryFlutter.init(
     (options) {
       options
-        ..dsn = isSentryEnabled ? Env.sentryDSN : ''
+        ..dsn = isSentryEnabled ? dotenv.env['sentryDSN'] : ''
         ..environment = 'alpha'
         ..release = '0.1'
         ..tracesSampleRate = 1.0

lib/utils/env_class.dart

@@ -1,15 +0,0 @@
-import 'package:envied/envied.dart';
-
-part 'env_class.g.dart';
-
-@Envied()
-abstract class Env {
-  @EnviedField(varName: 'sentryDSN')
-  static String sentryDSN = _Env.sentryDSN;
-
-  @EnviedField(varName: 'apiKey')
-  static String apiKey = _Env.apiKey;
-
-  @EnviedField(varName: 'appId')
-  static String appId = _Env.appId;
-}