Button To Disable Octolapse For The Next Print

[nharrer]

This pull request fixes #766 by adding a button to the snapshot preview window that allows you to proceed with the next print without using Octolapse.

Reasons:

• I typically want to have Octolapse enabled at all times. However, there are instances where a timelapse may not be suitable, such as with very flat prints, or when the prints are particularly delicate, and I prefer to disable Octolapse as a precaution.
• While disabling the entire plugin works, I often forget to reactivate it afterwards.
• With that button, I can quickly decide on each print.

Note: I haven't submitted many pull requests yet. Hopefully, I'm doing it correctly.