feat(vide_calls): added tokens clearing

lib/core/firebase_api.dart

@@ -99,6 +99,43 @@ class FirebaseApi {
     }
   }
 
+
+  Future<void> unregisterPushTokens() async {
+    if (!await TokenStorage.haveTokenInStorage()) return;
+    try {
+      await unregisterPushToken();
+    } catch (_) {}
+    if (Platform.isIOS) {
+      try {
+        await _unregisterIosVoipPushToken();
+      } catch (_) {}
+    }
+  }
+
+  Future<void> unregisterPushToken() async {
+    if (!await TokenStorage.haveTokenInStorage()) return;
+    try {
+      final isHuawei = Platform.isAndroid ? await _isHuaweiDevice() : false;
+      final platform = Platform.isIOS ? 'ios' : (isHuawei ? 'huawei' : 'android');
+      final token = (await getToken()) ?? '';
+      await sl<Dio>().post(
+        '/api/profile/notification/token/unregister',
+        data: {
+          'platform': platform,
+          'token': token,
+        },
+      ).timeout(
+        const Duration(seconds: 10),
+        onTimeout: () {
+          throw TimeoutException('unregisterPushToken timeout');
+        },
+      );
+    } catch (e, st) {
+      log(e.toString(), stackTrace: st);
+      await _errorReporter.report(e, st, origin: 'FirebaseApi');
+    }
+  }
+
   Future<void> _registerIosVoipPushToken() async {
     try {
       final token = (await FlutterCallkitIncoming.getDevicePushTokenVoIP())?.trim();
@@ -124,6 +161,26 @@ class FirebaseApi {
     }
   }
 
+  Future<void> _unregisterIosVoipPushToken() async {
+    try {
+      final token = (await FlutterCallkitIncoming.getDevicePushTokenVoIP())?.trim() ?? '';
+      await sl<Dio>().post(
+        '/api/profile/notification/token/voip/unregister',
+        data: {
+          'token': token,
+        },
+      ).timeout(
+        const Duration(seconds: 10),
+        onTimeout: () {
+          throw TimeoutException('unregisterPushToken voip timeout');
+        },
+      );
+    } catch (e, st) {
+      log(e.toString(), stackTrace: st);
+      await _errorReporter.report(e, st, origin: 'FirebaseApi');
+    }
+  }
+
   Future<bool> _isHuaweiDevice() async {
     if (!Platform.isAndroid) return false;
     try {