✨ fix: remove unnecessary test assertions and improve act usage

app/__tests__/api/email.test.tsx

@@ -8,6 +8,14 @@ jest.mock('next/server', () => ({
   },
 }));
 
+beforeAll(() => {
+  jest.spyOn(console, 'error').mockImplementation(() => {});
+});
+
+afterAll(() => {
+  (console.error as jest.Mock).mockRestore();
+});
+
 beforeEach(() => {
   nodemailermock.mock.reset();
   process.env.NEXT_PUBLIC_MY_EMAIL = 'test@dki.one';