v1.0.0

This fork from Allusion starts here.
Last release from the main repo is v1.0.0-rc.10

From there, original authors:

• refactored the backend to allow better tests
• improved the settings widgets
• reorganised style files around

Thanks again for this wonderful codebase ❇️ Now let's improve Allusion! 😸

Full Changelog: v1.0.0-rc.10...v1.0.0