Closes #ISSUE
Release Notes:
- settings: Removed support for having format steps in both the
`format_on_save` and `formatter` settings for languages.
`format_on_save` is now restricted to the values of `"on"` and `"off"`,
and all format steps should be set under the `formatter` key. If you
were using `format_on_save` but not `formatter` this will be migrated
for you, otherwise it will require a manual migration.
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Co-authored-by: Smit <smit@zed.dev>
4c35274b6e