fix: 使用6.0模板发现的一些问题 (ant-design#10033)

* chore: 没有必要的文件

* fix: can prettier pkg

* chore: 有格式化后自动排序

.prettierignore

@@ -1,5 +1,4 @@
 **/*.svg
-package.json
 .umi
 .umi-production
 /dist
@@ -20,4 +19,4 @@ yarn-error.log
 .history
 CNAME
 /build
-/public
+/public

package.json

@@ -4,13 +4,13 @@
   "private": true,
   "description": "An out-of-box UI solution for enterprise applications",
   "scripts": {
-    "postinstall": "max setup",
     "analyze": "cross-env ANALYZE=1 max build",
     "build": "max build",
     "deploy": "npm run build && npm run gh-pages",
     "dev": "npm run start:dev",
     "gh-pages": "gh-pages -d dist",
     "i18n-remove": "pro i18n-remove --locale=zh-CN --write",
+    "postinstall": "max setup",
     "lint": "npm run lint:js && npm run lint:prettier && npm run tsc",
     "lint-staged": "lint-staged",
     "lint-staged:js": "eslint --ext .js,.jsx,.ts,.tsx ",