Long PEP titles wrap with more line-height than expected

[davidfstr]

Please see screenshot of PEP 655 with annotated issue:

[hugovk]

Thanks for the report, this will be fixed by #2439 by removing line-height: 2.3; for the h1:

https://pep-previews--2439.org.readthedocs.build/pep-0655/

[CAM-Gerlach]

Yep, thanks—I noticed that while I was investigating #2437 and figured I'd just fix it in the same PR.