Importing pdf.mjs into app.js

Actually:

https://caniuse.com/?search=top%20level%20await

es2022 is OK and now giving me:

✘ [ERROR] Top-level await is currently not supported with the "iife" output format

    vendor/pdf.mjs:16837:53:
      16837 │ ...ck_exports__ = globalThis.pdfjsLib = await __webpack_exports__;
            ╵                                         ~~~~~

so I don’t think I’m doing this right.