fix: correct ts file

package.json

@@ -5,6 +5,7 @@
   "description": "A collection of components for the Carbon Design System built using Vue.js",
   "packageManager": "yarn@3.2.0",
   "main": "dist/carbon-vue-3.umd.min.js",
+  "types": "src/index.d.ts",
   "scripts": {
     "postinstall": "node prepare.js",
     "prepack": "pinst --disable",

src/index.d.ts

@@ -1,12 +1,6 @@
-declare namespace _default {
-    /**
-     * @typedef {import("vue").App} App
-     */
-    /**
-     * Install plugin in Vue
-     * @param {App} Vue
-     * @param {Array<string>} options
-     */
-    function install(Vue: import("vue").App<any>, options: string[]): void;
+import { PluginFunction } from 'vue';
+
+declare class CarbonVue {
+  static install: PluginFunction<Array<string>>;
 }
-export default _default;
+export default CarbonVue;

src/index.js

@@ -1,3 +1,4 @@
+/// <reference path="index.d.ts" />
 const ctx = require.context(
   './components/',
   true,