chore(deps): upgrade eslint to v7

Author: wxsms

.eslintrc.js

@@ -3,10 +3,10 @@
 module.exports = {
   root: true,
   env: {
-    browser: true,
+    browser: true
   },
   // https://github.com/feross/standard/blob/master/RULES.md#javascript-standard-style
-  extends: 'standard',
+  extends: ['standard', 'plugin:vue/base'],
   // required to lint *.vue files
   plugins: [
     'html'

package.json

@@ -45,13 +45,14 @@
     "coveralls": "3.1.0",
     "cross-env": "7.0.2",
     "es6-object-assign": "1.1.0",
-    "eslint": "4.19.1",
+    "eslint": "7.10.0",
     "eslint-config-standard": "11.0.0",
-    "eslint-plugin-html": "4.0.6",
+    "eslint-plugin-html": "6.1.0",
     "eslint-plugin-import": "2.22.1",
     "eslint-plugin-node": "5.2.1",
     "eslint-plugin-promise": "3.8.0",
     "eslint-plugin-standard": "3.1.0",
+    "eslint-plugin-vue": "^7.0.1",
     "jquery": "3.5.1",
     "karma": "5.2.3",
     "karma-chrome-launcher": "3.1.0",