fix: error in response as optional field

src/app/models/Response.ts

@@ -1,8 +1,8 @@
-import { ResponseError } from "./ResponseError";
+import { ResponseError } from './ResponseError';
 
 export interface Response<T> {
-    data: T;
+  data: T;
-    errors: ResponseError[];
+  errors?: ResponseError[];
-    message: string;
+  message: string;
-    success: boolean;
+  success: boolean;
-}
+}