old_contents: module.exports = {
      plugins: [
          'vue'
      ],
      extends: [
          'vast',
          'plugin:vue/recommended'
      ]
  };
  
new_contents: module.exports = {
      plugins: [
          'vue'
      ],
      extends: [
          'vast',
          'plugin:vue/recommended'
      ],
      rules: {
          // Possible errors:
          // this rule only covers case when used in code like: Vue.component...
          'vue/no-shared-component-data': 2,
          'vue/require-valid-default-prop': 2,
  
          // Best practices:
          'vue/html-end-tags': 2,
          'vue/no-async-in-computed-properties': 2,
          'vue/no-duplicate-attributes': 2,
          'vue/no-side-effects-in-computed-properties': 2,
          // this could be part of the Stylistic Issues
          'vue/order-in-components': 1
  
          // Stylistic Issues:
      }
  };
  
subject: Add common errors and best practices rules