pack: add prettier and reformat all codes

.eslintrc.json

@@ -13,16 +13,11 @@
     "node": true,
     "es6": true
   },
-  "extends": [
-    "standard",
-    "plugin:vue/vue3-recommended"
-  ],
+  "extends": ["standard", "plugin:vue/vue3-recommended", "prettier"],
   "globals": {
     "__static": true
   },
-  "plugins": [
-    "vue"
-  ],
+  "plugins": ["vue"],
   "rules": {
     "arrow-parens": 0,
     "generator-star-spacing": 0,