feat: add models for backend response

src/app/models/Response.ts

@@ -0,0 +1,8 @@
+import { ResponseError } from "./ResponseError";
+
+export interface Response<T> {
+    data: T;
+    errors: ResponseError[];
+    message: string;
+    success: boolean;
+}

src/app/models/ResponseError.ts

@@ -0,0 +1,6 @@
+export interface ResponseError {
+    code: number;
+    details: string;
+    field: string;
+    message: string;
+}