Ability to view more prominent file name in proof HQ

[#1]

When proofing a file with more than one page in Proof HQ, the filename needs to be more prominent. As you can see from the attached images, little to none of the filename is immediately visible, making it difficult to work out which one we're reviewing, without hovering over the image thumbnail

See attached for more context

[#2]

See attached image

[#3]

see