chore: migrate to @nuxt/test-utils alpha (#1133)

* test: update snapshots to remove quotes

* chore: add alpha versions of test-utils

* chore: migrate to new test format

* test: slightly improve typing in suite

* test: improve safety of basic test

vitest.config.ts

@@ -1,18 +0,0 @@
-/// <reference types="vitest" />
-import { fileURLToPath } from 'node:url'
-import { defineVitestConfig } from 'nuxt-vitest/config'
-
-export default defineVitestConfig({
-  // @ts-ignore
-  test: {
-    testTimeout: 20000,
-    globals: true,
-    silent: true,
-    environment: 'nuxt',
-    environmentOptions: {
-      nuxt: {
-        rootDir: fileURLToPath(new URL('test/nuxt/', import.meta.url))
-      }
-    }
-  }
-})