override webcrypto deps

lib/controllers/unified_push.dart

@@ -38,18 +38,13 @@ class UnifiedPushController extends AsyncNotifier<bool> {
         );
       },
       onMessage: (message, instance) async {
-        final e = await client.handlePush(
+        final event = await client.handlePush(
           json.decode(String.fromCharCodes(message.content)),
         );
-        print(e);
-      },
-      onRegistrationFailed: (e, r) {
-        throw "e";
+        print(event);
       },
+      onRegistrationFailed: (error, instance) => throw error,
       onUnregistered: (instance) => ref.invalidateSelf(),
-      onTempUnavailable: (instance) {
-        throw "t";
-      },
     );
 
     if (registered) {