Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo_premium/lib/providers/premium_provider.dart

@@ -0,0 +1,27 @@
+import 'package:filcnaplo/models/settings.dart';
+import 'package:filcnaplo_premium/api/auth.dart';
+import 'package:flutter/widgets.dart';
+
+class PremiumProvider extends ChangeNotifier {
+  final SettingsProvider _settings;
+  List<String> get scopes => _settings.premiumScopes;
+  bool hasScope(String scope) => true;
+  String get accessToken => _settings.premiumAccessToken;
+  String get login => _settings.premiumLogin;
+  bool get hasPremium => true;
+
+  late final PremiumAuth _auth;
+  PremiumAuth get auth => _auth;
+
+  PremiumProvider({required SettingsProvider settings}) : _settings = settings {
+    _auth = PremiumAuth(settings: _settings);
+    _settings.addListener(() {
+      notifyListeners();
+    });
+  }
+
+  Future<void> activate({bool removePremium = false}) async {
+    await _auth.refreshAuth(removePremium: removePremium);
+    notifyListeners();
+  }
+}