Improve offline behaviour

[rezkiy37]

Details

The PR improves the offline behavior. It handles to pre-upload of a PDF worker to be able to open PDF files smoothly when the user is offline. It was mentioned here. I use this PDF worker described in docs. Also, it improves the example project to be able to upload and open PDF files.

Related Issues

Expensify/App#22998

Manual Tests

1. Install deps. for both package and example: npm install && cd example && npm install && cd ...
2. Please confirm that you run with these local changes to test with the latest codebase.
3. Run a script - cd example && npm run start && cd .. - of the example.
4. Verify that Webpack launches successfully.
5. Verify that it opens a tab.
6. Verify that the PDF previewer works.
7. Go offline.
8. Verify that the previewer still works properly.

Linked PRs

Expensify/App#33434

Offline.mp4

Offline.mp4

[allroundexperts]

Works good!

Screen.Recording.2024-03-11.at.11.42.00.PM.mov

Screen.Recording.2024-03-11.at.11.42.52.PM.mov

Screen.Recording.2024-03-11.at.11.45.57.PM.mov

[allroundexperts]

Looks good!