Allow links as proofing source

With this update, users will be able to proof links as opposed to just files. This will be especially helpful for teams looking to proof webpages, which will be captured and uploaded as a PDF into Hive for editing. Additionally, Adobe XD links can be input into Hive for seamless proofing.

This will massively cut down on time spent manually screenshotting webpages and other files that need to be proofed, as Hive will seamlessly translate them into a clean document.

Thank you to Aron from Data Driven Design for requesting this feature!