feat:rename subtree from frontend-vue to frontend

frontend/src/__tests__/App.spec.ts

@@ -0,0 +1,11 @@
+import { describe, it, expect } from 'vitest'
+
+import { mount } from '@vue/test-utils'
+import App from '../App.vue'
+
+describe('App', () => {
+  it('mounts renders properly', () => {
+    const wrapper = mount(App)
+    expect(wrapper.text()).toContain('You did it!')
+  })
+})