Update eslint config

Signed-off-by: Knut Ahlers <knut@ahlers.me>

src/.eslintrc.js

@@ -4,26 +4,23 @@ module.exports = {
   'root': true,
   'parserOptions': {
     parser: 'babel-eslint',
-    sourceType: 'module',
   },
   'env': {
-    node: true,
+    browser: true,
   },
   'extends': [
     /*
      * https://github.com/vuejs/eslint-plugin-vue#priority-a-essential-error-prevention
      * consider switching to `plugin:vue/strongly-recommended` or `plugin:vue/recommended` for stricter rules.
      */
-    'plugin:vue/essential',
+    'plugin:vue/recommended',
     // https://github.com/standard/standard/blob/master/docs/RULES-en.md
     'eslint:recommended',
   ],
   // required to lint *.vue files
   'plugins': ['vue'],
   'globals': {
-    locale: true,
     process: true,
-    version: true,
   },
   // add your custom rules here
   'rules': {