feat(vue): add ionic vue beta (#22062)

packages/vue/src/ionic-vue.ts

@@ -0,0 +1,26 @@
+import { App, Plugin } from 'vue';
+import { IonicConfig, setupConfig } from '@ionic/core';
+import { applyPolyfills, defineCustomElements } from '@ionic/core/loader';
+
+const ael = (el: any, eventName: string, cb: any, opts: any) => el.addEventListener(eventName.toLowerCase(), cb, opts);
+const rel = (el: any, eventName: string, cb: any, opts: any) => el.removeEventListener(eventName.toLowerCase(), cb, opts);
+
+export const IonicVue: Plugin = {
+
+  async install(_app: App, config: IonicConfig = {}) {
+    if (typeof (window as any) !== 'undefined') {
+      setupConfig({
+        ...config,
+        _ael: ael,
+        _rel: rel,
+      });
+      await applyPolyfills();
+      await defineCustomElements(window, {
+        exclude: ['ion-tabs'],
+        ce: (eventName: string, opts: any) => new CustomEvent(eventName.toLowerCase(), opts),
+        ael,
+        rel
+      } as any);
+    }
+  }
+};