chore: staged changes

Author: rayriffy

src/packlets/front/playground.svelte

@@ -7,7 +7,7 @@
     id: string
     size: number
     horizontal: number
-    initialHeight: number
+    initialHeight?: number
   }
 
   let balloons: Item[] = []

svelte.config.js

@@ -0,0 +1,5 @@
+import { vitePreprocess } from '@astrojs/svelte';
+
+export default {
+	preprocess: vitePreprocess(),
+}