Physical page number always visible for thumbnails instead of only when hovering

[Westedt]

In the metadata editor, the physical page number should always be visible in the thumbnails (gallery view) instead of only when hovering. The image number could be displayed above each image.

[solth]

This could be made configurable on a per-user base in the personal metadata editor settings.

[thomaslow]

@Westedt Hello, could you check the demo video in #6239 and verify that my proposed change matches your expectations? Let me know in case you prefer a different styling (font, background, position top/bottom). Thank you!

[Westedt]

Thanks @thomaslow! That's exactly what we wished for.