commands: Fix config reloading in Vim and similar

commands: Fix config reloading in Vim and similar

The config path was simplified in Hugo 0.56.0 to support more config dirs/files (go.mod etc.),
and the new code path assumed that every file change would trigger a `Write` event.

This is not true for Vim etc. which triggers a `Chmod` and then a `Rename`.

Lesson learned: Be really careful changing Os/editor specific code without proper tests.

Fixes #6139