Add prettier config

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true

.eslintrc.js

@@ -1,17 +1,18 @@
 module.exports = {
-  root: true,
-  env: {
-    node: true
-  },
-  'extends': [
-    'plugin:vue/essential',
-    'eslint:recommended'
-  ],
-  rules: {
-    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
-    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off'
-  },
-  parserOptions: {
-    parser: 'babel-eslint'
-  }
+	root: true,
+	env: {
+		node: true,
+	},
+	extends: [
+		'eslint:recommended',
+		'plugin:vue/recommended',
+		'plugin:prettier/recommended',
+	],
+	rules: {
+		'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+		'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+	},
+	parserOptions: {
+		parser: 'babel-eslint',
+	},
 }