Cover art on Artist and Release group pages!

jesus2099's Funkey Illustrated Records userscript already does this perfectly imo:

If anyone wants bonus points, I would propose a few changes to the above screenshot:

• Give the images their own column (this may simplify things for future updates)
• Bigger images, 100% of the row height
• When there's no image, use the same placeholder icon as is used in LB (see mockup below - I couldn't find the OG svg file to link, but monkey will be able to supply it)
• This I'm not sure about - enlarge non-square images to fill the space? I lean towards yes, because it shouldn't hurt cover art identification. If we want to show empty space instead, please add a bit of a darker background like so.

Mockup:

Note: I also mocked up the image column to the left of the date column, but it didn't look as good.

Search hints: display artwork thumbnails, show art previews, covers in columns