Small layout and links adjustments to the splash screen.
- Extend list of templates to fit the new Storyboarding template.
- Extend the list of recent files by one row, so it matches templates.
- Add icons to templates.
- Rename `Donate` to `Donate to Blender`.
- Move donate link down so it's more prominent.
- Make separator visible.
- Add "Get Involved" link.
- Remove "Tutorials" link. The Support link already provides help, and
it's been a while since we no longer promote tutorials on blender.org.
See PR for details and screenshots.
Pull Request: https://projects.blender.org/blender/blender/pulls/146730
06b13c8fb4