feat:theme changing done

lib/core/services/storage_service.dart

@@ -8,6 +8,10 @@ class StorageService {
     _sharedPreference = await SharedPreferences.getInstance();
   }
 
+  void setBool({required String key, required bool value}) {
+    _sharedPreference.setBool(key, value);
+  }
+
   void setString({required String key, required String value}) {
     _sharedPreference.setString(key, value);
   }
@@ -25,6 +29,10 @@ class StorageService {
   String? getString({required String key}) {
     return _sharedPreference.getString(key);
   }
+
+  bool getBool({required String key}) {
+    return _sharedPreference.getBool(key) ?? false;
+  }
 }
 
 /*