This PR is a possible solution for issue #22866. Main change is to add a
`author-wrapper` class around author name, like the wrapper added to
message. The `max-width` is set to 200px on PC, and 100px on mobile
device for now.
This PR is trying to add accessibility to the menu as mentioned in
#23053 so the menu can be accessed using keyboard (A quick demo is added
below), with a reference to
[PR2612](https://github.com/go-gitea/gitea/pull/22612). The goal is to
make the menu accessible merely using keyboard like shown below. And
this PR might need confirmation from developers using screen readers.