[Build] use vue-cli to build site (#3734)

package.json

@@ -14,12 +14,12 @@
   ],
   "scripts": {
     "bootstrap": "yarn || npm i",
-    "dev": "npm run build:entry && webpack-dev-server --config build/webpack.dev.js",
+    "dev": "npm run build:entry && cd site && yarn serve",
     "lint": "eslint ./src --ext .js,.vue,.ts,.tsx && stylelint \"src/**/*.less\" --fix",
     "build:entry": "node build/build-entry.js",
     "build:changelog": "vant-doc changelog ./docs/markdown/changelog.generated.md --tag 2.0.0",
     "build:lib": "node build/build-lib.js",
-    "build:site": "rm -rf docs/dist && cross-env NODE_ENV=production webpack --config build/webpack.doc.js && gh-pages -d docs/dist --add",
+    "build:site": "rm -rf site/dist && cd site && npm run build && gh-pages -d dist --add",
     "test": "jest",
     "test:watch": "jest --watch",
     "test:clear-cache": "jest --clearCache",
@@ -89,7 +89,6 @@
     "eslint": "^6.0.1",
     "fast-glob": "^3.0.3",
     "gh-pages": "^2.0.1",
-    "html-webpack-plugin": "3.2.0",
     "husky": "^3.0.0",
     "jest": "^24.8.0",
     "jest-serializer-vue": "^2.0.2",
@@ -98,7 +97,6 @@
     "lint-staged": "^9.0.0",
     "postcss": "^7.0.17",
     "postcss-loader": "^3.0.0",
-    "progress-bar-webpack-plugin": "^1.12.1",
     "shelljs": "^0.8.3",
     "signale": "^1.4.0",
     "style-loader": "^0.23.1",
@@ -118,8 +116,7 @@
     "vue-template-compiler": "2.6.10",
     "vue-template-es2015-compiler": "^1.9.1",
     "webpack": "4.35.2",
-    "webpack-cli": "^3.3.5",
-    "webpack-dev-server": "3.7.2"
+    "webpack-cli": "^3.3.5"
   },
   "sideEffects": [
     "es/**/style/*",