Improve long title styling

[danieldegroot2]

Long titles should be moved down, wrapped into two lines and/or use slightly smaller font.
This prevents them from being overlapped by the logo in the top left.
When possible, shorten long titles to make them easier to read.

Example https://osm2pgsql.org/news/2025/12/04/style-tester.html

Tested with Chrome, Firefox, Edge

Sidenote: At zooms >100% (also possibly on certain resolutions/monitors) the logo may overlap the main menu at the top.

[joto]

PRs welcome.