✨ fix: remove unnecessary test assertions and improve act usage

jest.setup.ts

@@ -1 +1,16 @@
-import 'whatwg-fetch';
+import 'whatwg-fetch';
+import React from "react";
+
+jest.mock("react-responsive-masonry", () => ({
+  __esModule: true,
+  default: ({ children }: { children: React.ReactNode }) =>
+    React.createElement("div", null, children),
+  get ResponsiveMasonry() {
+    return ({ children }: { children: React.ReactNode }) =>
+      React.createElement("div", null, children);
+  },
+}));
+
+jest.mock('next/link', () => {
+  return ({ children }: { children: React.ReactNode }) => children;
+});