some initial setup work for GUI

MusicPlayerV2-GUI/.eslintrc.cjs

@@ -0,0 +1,14 @@
+/* eslint-env node */
+require('@rushstack/eslint-patch/modern-module-resolution')
+
+module.exports = {
+  root: true,
+  'extends': [
+    'plugin:vue/vue3-essential',
+    'eslint:recommended',
+    '@vue/eslint-config-typescript'
+  ],
+  parserOptions: {
+    ecmaVersion: 'latest'
+  }
+}