Image diff has 0 width/height images

[silverwind]

Seems like image diff is currently broken, all images have inline styles with width: 0; height: 0. I think the JS calculations go wrong somewhere. Also, I think default view mode should be image diff.

Example: https://try.gitea.io/silverwind/updates/commit/3d80fab2f8ee1d7bca1b7cff4f242461424866f8

cc: @KN4CK3R

[KN4CK3R]

That's caused by the "file view toggle" from #14661 and already fixed in #14867. As 1.14.2 still works I would wait until the PR with the fix gets merged.