[doc] Split old release notes page (#6763)

* [doc] Split old release notes page

The page release_notes_old was getting so large,
that displaying it was noticeable. Splitting the old release
notes by version now.

Also removing the detailed release notes for pmd 7 into
the old release notes section in the menu.

* Fix dead links

* Update typos configuration

[release] copy for tag pmd_releases/7.25.0

[release] copy for tag pmd_releases/7.24.0

[release] copy for tag pmd_releases/7.23.0

[release] copy for tag pmd_releases/7.22.0

[release] copy for tag pmd_releases/7.21.0

[release] copy for tag pmd_releases/7.20.0

[release] copy for tag pmd_releases/7.19.0

[release] copy for tag pmd_releases/7.18.0

[release] copy for tag pmd_releases/7.17.0