Do not disable prompt editing during generation

[MarcusLlewellyn]

Is your feature request related to a problem? Please describe.
Not a problem, exactly. Just a nit pick.

Describe the solution you'd like
Leave the prompt textbox enabled during image generation.

Describe alternatives you've considered
Please don't disable the prompt textbox during generation.

Additional context
Add any other context or screenshots about the feature request here.
I can't speak for other users, but I often will watch image outputs, and make changes to the prompt and other parameters while generation is still going. I can change everything except the prompt during generation at the moment.

[nguyenkm]

Yep, I often tweak the prompt while a batch is running.

[psychedelicious]

This will be fixed in #1187, thanks for noting the issue.

[psychedelicious]

Fixed in #1187