Use separate eslint config file

Adapted from splatoon3.ink

.eslintrc.cjs

@@ -0,0 +1,56 @@
+/* eslint-env node */
+// const createAliasSetting = require('@vue/eslint-config-airbnb/createAliasSetting');
+
+module.exports = {
+  'root': true,
+  'extends': [
+    'plugin:vue/vue3-recommended',
+    'eslint:recommended',
+  ],
+  'rules': {
+    // ESLint
+    'indent': ['warn', 2, { 'SwitchCase': 1 }],
+    'comma-dangle': ['warn', 'always-multiline'],
+    'no-unused-vars': ['warn', { 'args': 'none' }],
+    'semi': 'warn',
+    'quotes': ['warn' , 'single'],
+    'object-curly-spacing': ['warn', 'always'],
+
+    // Vue
+    'vue/multi-word-component-names': 'off',
+    'vue/require-default-prop': 'off',
+    'vue/max-attributes-per-line': ['warn', { singleline: { max: 4 } }],
+    'vue/html-self-closing': ['warn', { html: { void: 'always' } }],
+  },
+  'globals': {
+    '__dirname': 'readonly',
+    'process': 'readonly',
+    'require': 'readonly',
+    'module': 'readonly',
+    'Buffer': 'readonly',
+  },
+  'overrides': [
+    {
+      'files': ['src/**'],
+      'rules': {
+        '@dword-design/import-alias/prefer-alias': ['warn', { 'alias': {
+          '@': './src',
+        } }],
+      },
+    },
+  ],
+  'env': {
+    'vue/setup-compiler-macros': true,
+  },
+  'ignorePatterns': [
+    'src/assets/i18n/index.mjs', // "assert" syntax is currently unrecognized
+  ],
+  'parserOptions': {
+    'ecmaVersion': 2022,
+  },
+  settings: {
+    // ...createAliasSetting({
+    //   '@': './src',
+    // }),
+  },
+};

package.json

@@ -62,24 +62,6 @@
     "shipit-cli": "^5.3.0",
     "vue-template-compiler": "^2.6.11"
   },
-  "eslintConfig": {
-    "root": true,
-    "env": {
-      "node": true
-    },
-    "extends": [
-      "plugin:vue/essential",
-      "eslint:recommended"
-    ],
-    "rules": {
-      "no-unused-vars": "warn",
-      "no-prototype-builtins": 0,
-      "@vue/multi-word-component-names": 0
-    },
-    "parserOptions": {
-      "parser": "babel-eslint"
-    }
-  },
   "postcss": {
     "plugins": {
       "autoprefixer": {}