Image generation message

[mheggelund]

Improve message shown to users when model image not yet is created or present.

I understand what it means, but just because I have been a part of the development. The message is not easily understandable for others i assume.

It is possible to display different messages based on the model status as well.

Proposal:
if transforming --> "Model picture will be generated after the model is transformed."
if transformation failed --> "Model transformation failed. Delete the model and upload again."

If transformation failed, a option to just re-upload the file should be an option here possibly?