Enhance @keyword and @library docstrings
Enhance @keyword and @library docstrings

Also a bit of code cleanup.

Related to @library, see issue #3019 and PR #3222.

HelioGuilherme66/robotframework,robotframework/robotframework,robotframework/robotframework,robotframework/robotframework,HelioGuilherme66/robotframework,HelioGuilherme66/robotframework