1. add border-radius and spacing to bars
2. use tailwind background classes
3. Add more space around activity list headers
<img width="983" alt="Screenshot 2024-03-27 at 23 40 54"
src="70f72c30-e69f-4ecb-882f-32b8bc94d638">
<img width="1020" alt="Screenshot 2024-03-27 at 23 41 02"
src="a35dbbda-515c-40b0-938a-d759f9686b8e">
Of note is the CSS has references to "floating label" and "transparent
label" but I could not find those anywhere in the code. They are related
to https://github.com/go-gitea/gitea/pull/3939, but I think these have
long been removed.
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Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>