Consider collapsing "git commit" comments by default via details-summary

[vlsi]

See https://gist.github.com/scmx/eca72d44afee0113ceb0349dd54a84a2

The following issue contains lots of "git commit" comments "ASF subversion and git services", and it makes it absolutely hard to read: https://github.com/mocobeta/forks-migration-test-2/issues/9956#issuecomment-1205952326 (https://issues.apache.org/jira/browse/LUCENE-10002)

I believe it would be nice to collapse those technical comments via details-summary tags.

[mocobeta]

Collapsing long texts with <details> is a really nice feature, and I often use it.
But I think we should keep it as-is; we should carry the original Jira comments without tweaks (commit comments often contain important information and are worth showing by default).