feat: build sync plugin frontend

plugins/sync/frontend/package.json

@@ -2,6 +2,7 @@
   "name": "verstak-sync-plugin",
   "version": "0.1.0",
   "private": true,
+  "type": "module",
   "scripts": {
     "build": "vite build",
     "dev": "vite build --watch"

plugins/sync/frontend/vite.config.js

@@ -0,0 +1,20 @@
+import { defineConfig } from 'vite';
+import { svelte } from '@sveltejs/vite-plugin-svelte';
+
+export default defineConfig({
+  plugins: [svelte()],
+  build: {
+    outDir: 'dist',
+    lib: {
+      entry: 'src/index.js',
+      formats: ['iife'],
+      name: 'VerstakSyncPlugin'
+    },
+    rollupOptions: {
+      output: {
+        entryFileNames: 'index.js',
+        assetFileNames: '[name][extname]'
+      }
+    }
+  }
+});