[feature request] add an option to rename files from within Diffusion Toolkit

[carfesh]

Is your feature request related to a problem? Please describe. I'm always frustrated when I rename files outside of Diffusion Toolkit and have to repair my favorites and albums.

Describe the solution you'd like It would be great if I could perform a file rename from within Diffusion Toolkit, either by hitting F2 and entering a new filename, or by using a context menu to rename.

Describe alternatives you've considered None come to mind.

Additional context

[RupertAvery]

This has been implemented in the latest code and will be included in the next release (1.9.0)