First-time splashscreen

[CarsonBurke]

• gnome/libadwaita style splascreen

1. With description of service (monitor resources to your preference, see guide (blue ubderline hyperlink)
2. donate CTA, "this project needs your help to thrive", " only exists because of you" etc. Also contribute CTA?
3. "This project persists thanks to:" Contributors and sponsors list using API to gitlabs/github

• Potentially combine 2 and 3. Although showing existing supporters might disincentivize additonal support