add vitest and first unit test

__tests__/page.test.tsx

@@ -0,0 +1,10 @@
+import { expect, test } from 'vitest'
+import { render, screen } from '@testing-library/react'
+import Page from '../app/page'
+import Home from '../app/page'
+
+test('Home', () => {
+  render(<Home />)
+  expect(screen.getByRole('main')).toBeDefined()
+  expect(screen.getByText('Cardservo')).toBeDefined()
+})

app/page.tsx

@@ -4,7 +4,7 @@ import { SearchBar } from "./components/search-bar";
 
 export default function Home() {
   return (
-    <div>
+    <>
       <Navbar />
       <div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20 font-[family-name:var(--font-geist-sans)]">
         <main className="flex flex-col gap-8 row-start-2 items-center sm:items-start">
@@ -25,6 +25,6 @@ export default function Home() {
         <footer className="row-start-3 flex gap-6 flex-wrap items-center justify-center">
         </footer>
       </div>
-    </div>
+    </>
   );
 }