docs(installation): add tip to improve types in vue (#4318)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

docs/content/1.getting-started/2.installation/2.vue.md

@@ -78,6 +78,22 @@ components.d.ts
 
 ::
 
+::tip
+Internally, Nuxt UI relies on custom alias to resolve the theme types. If you're using TypeScript, you should add an alias to your `tsconfig` to enable auto-completion in your `vite.config.ts`.
+
+```json [tsconfig.node.json]
+{
+  "compilerOptions": {
+    "paths": {
+      "#build/ui": [
+        "./node_modules/@nuxt/ui/.nuxt/ui"
+      ]
+    }
+  }
+}
+```
+::
+
 #### Use the Nuxt UI Vue plugin in your `main.ts`
 
 ```ts [main.ts]{3,14}