add support for extension vite plugin loading, add vue setup hook for extensions

resources/js/app.ts

@@ -18,11 +18,14 @@ createInertiaApp({
             import.meta.glob<DefineComponent>('./Pages/**/*.vue')
         ),
     setup({ el, App, props, plugin }) {
-        createApp({ render: () => h(App, props) })
-            .use(plugin)
-            .use(pinia)
-            .use(ZiggyVue)
-            .mount(el);
+        const app = createApp({ render: () => h(App, props) });
+
+        // currently only one vue app setup hook is supported
+        if (window.vueAppSetupHook) {
+            window.vueAppSetupHook(app);
+        }
+
+        app.use(plugin).use(pinia).use(ZiggyVue).mount(el);
     },
 
     progress: {

resources/js/types/global.d.ts

@@ -2,11 +2,13 @@ import { PageProps as InertiaPageProps } from '@inertiajs/core';
 import { AxiosInstance } from 'axios';
 import ziggyRoute from 'ziggy-js';
 import { PageProps as AppPageProps } from './';
+import type { App } from 'vue';
 
 declare global {
     interface Window {
         axios: AxiosInstance;
         initialDataLoaded: boolean;
+        vueAppSetupHook?: (app: App) => void;
     }
 
     let route: typeof ziggyRoute;