DOC: fix docstring validation errors for pandas.io.formats.style.Styler
Addresses #59606.

Fixes:
https://github.com/pandas-dev/pandas/blob/360597c349f4309364af0d5ac3bab158fd83d9fa/ci/code_checks.sh#L308-L335

Note: order of args for `pandas.io.formats.style.Styler.to_excel` shifted around in order to maintain compatibility with shared doc template handler.
Thanks @hlakams 