Docs: change format_on_save value from false to "off" (#38615)
Found this outdated piece of information in the docs while trying to
disable it myself, this PR simply changes `false` to `"off"`.
Release Notes:
- N/A
79620454d0Matheus committed on 9/22/2025, 10:14:04 AM· committed by GitHubparent271771c