fix: Await prepare:types hook

Author: aklinker1

packages/wxt/src/core/utils/building/generate-wxt-dir.ts

@@ -63,7 +63,7 @@ export async function generateTypesDir(
   entries.push(await getTsConfigEntry());
 
   // Let modules add more entries
-  wxt.hooks.callHook('prepare:types', wxt, entries);
+  await wxt.hooks.callHook('prepare:types', wxt, entries);
 
   // Add main declaration file, not editable
   entries.push(getMainDeclarationEntry(entries));