docs: improve explanation of the errors argument of urllib.parse functions #125188
Description
Documentation
The URL quoting/unquoting functions in urllib.parse all have an errors argument, which is passed on to internal encode and decode functions.
The full explanation of what errors means is only explained in urllib.parse.quote.
The documentation for the other functions explains the the default behavior, but not any alternatives.
Each other function's documentation should should point to urllib.parse.quote for an explanation of errors.