bug#55027: 28.1; User option python-forward-sexp-function in wrong group

[Eli Zaretskii]

> From: Howard Melman <hmelman@gmail.com>
> Date: Tue, 19 Apr 2022 17:27:42 -0400
> 
> The defcustom for python-forward-sexp-function in python.el is in the
> python-flymake defgroup. I believe it should be in the python defgroup.

We could make it be in both groups, if that makes sense.

> It should probably be moved to the ;;; Navigation section of the file,
> but certainly before the defgroup for python-flymake

Why does its exact position in the source file matter?