Feature Request: Read externally hosted PDFs

[ArtofBugs]

For the PDF viewer, it would be nice if we could enter a URL for a non-local PDF. For example, if I want to read https://docs.house.gov/billsthisweek/20240429/HR%204866%20-Garcia.pdf, I have to

1. have my tab redirected to the lsd reader page
2. go back a page to get back to the PDF
3. download the PDF
4. go back to the lsd reader
5. upload the PDF there.

(Cryptically, some pages, like https://arxiv.org/pdf/1910.11099, give a "missing host permissions for the tab" error and don't redirect to the lsd reader at all, but I'd assume this falls under the same thing.)

It would be faster if there was a way to just enter the URL of the PDF page on the lsd reader page (or if the additional permissions are enabled, grab the URL automatically before the redirect).