fix: use dynamic import for vue server-renderer

Author: pimlie

src/ssr.ts

@@ -1,10 +1,9 @@
 import type { App } from 'vue'
 import type { SSRContext } from '@vue/server-renderer'
 
-// rollup doesnt like an import as it cant find the export so use require
-const { renderToString } = require('@vue/server-renderer')
-
 export async function renderToStringWithMeta (app: App): Promise<[string, SSRContext]> {
+  const { renderToString } = await import('@vue/server-renderer')
+
   const ctx: SSRContext = {}
 
   const html = await renderToString(app, ctx)