chore: enable workspaces

package.json

@@ -1,7 +1,11 @@
 {
   "private": true,
+  "workspaces": [
+    "packages/vant",
+    "packages/vant-cli"
+  ],
   "scripts": {
-    "prepare": "husky install",
+    "prepare": "husky install && cd packages/vant-cli && yarn build",
     "dev": "cd packages/vant && yarn dev",
     "lint": "cd packages/vant && yarn lint",
     "test": "cd packages/vant && yarn test",
@@ -13,10 +17,5 @@
     "*.{ts,tsx,js,vue,less}": "prettier --write",
     "*.{ts,tsx,js,vue}": "eslint --fix",
     "*.{vue,css,less}": "stylelint --fix"
-  },
-  "devDependencies": {
-    "@vant/cli": "^4.0.0-beta.5",
-    "@vue/compiler-sfc": "3.2.8",
-    "vue": "3.2.8"
   }
 }