Display thumbnail on Status page during printing

[dc42]

Description

See https://forum.duet3d.com/post/314263 for suggested layout; Questions:

• will the standard 160x160 thumbnail fit in that space?
• what would we do if there were more tools/heaters filling that space?

[mfs12]

Hey @dc42, the space is pretty limited and tools and heaters can use up the complete space.