docs: improve 'See also' in many docstrings (#60858)
- Add or extend bunch of "See also" ref lists
- Replace 'and' in those list by a comma
- Drop colon in 'See also: '
- Add missing punctuation (trailing period, commas)
- Apply an informal ordering of the docstring content: first comes the
general description, then any compat notices, then 'see also', then
examples.
