Add regenerate button for blips

[nashalexander]

Description

Closes #233

Adds a regenerate button to the blip tool. This removes the need to create new files just to generate new blips, improving usability.

Notes

• Loop icon used as the regenerate button
• Regenerating a blip does not modify its name
• New file name generation still works as it did before, with new files having the name "generator #" with incrementing numbers

Screenshots

[nashalexander]

Hello, just following up on this.

I can remove this PR if new features are not desired, or modify if modifications are required.

[nashalexander]

No worries, thanks for the approval!