Remove vitest globals (#21505)

Explicitly import them instead which is cleaner and enables better
editor integration.

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

vitest.config.js

@@ -24,7 +24,6 @@ export default defineConfig({
     open: false,
     allowOnly: true,
     passWithNoTests: true,
-    globals: true,
     watch: false,
   },
   plugins: [