Update PDF.js to 2.9

[Zhechko]

[agentcooper]

I've tried updating to 2.9.359, but the highlight position is wrong. It would be great if someone can take a look on how to fix that.

[cbwchuck]

Would it be helpful to add display: flex to .textLayer in pdf_viewer.css?

[agentcooper]

@cbwchuck thanks, would you be able to open a PR with your suggestion?

[cbwchuck]

@agentcooper Sure! Only concern is I was looking into this issue with pdfjs-dist 2.11.338, not sure whether it will be too big a stride though :)

[holub008]

My team has noticed improvements in the text layer (fewer spacing issues) in master with pdf.js 2.11, coming from 2.8. Any ETA for next release? We can try to help out on any outstanding work that needs to be bundled with the release. Thank you both for the great work!

[agentcooper]

@holub008 Thanks for the reminder. I've released version 5.4.0. Could you please try it and send your feedback?

[holub008]

Awesome! Text selection quality is improved (the attached example would always be missing spaces because every word was wrapped in a span). I believe the improvement is due to this update.

I'm noticing an issue (also on the attached example) where some highlights go missing when doing multi-line selection. Not sure if that's react-pdf-highlighter or our app; I'll get back to you with what we find.

[holub008]

Moving to https://github.com/agentcooper/react-pdf-highlighter/issues/180

[OscarBC]

I think I got it, Please see #181.

[agentcooper]

Closing as PDF.js was updated to 2.16.