Fix linting errors not shown on first compile

Add command to empty cache before serving
vuejs/vue-cli#3065

Author: f4kill

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "serve": "vue-cli-service serve",
+    "serve": "rimraf -rf ./node_modules/.cache/vue-loader && vue-cli-service serve",
     "build": "vue-cli-service build",
     "lint": "vue-cli-service lint",
     "staging": "vue-cli-service build --mode staging",
@@ -52,4 +52,4 @@
       "pre-commit": "npm run lint --silent"
     }
   }
-}
+}