Move some configuration files out of the repository root (#64303)

This PR cleans up the repository root a bit, moving some of the less
relevant config files into the `.config` folder and removing unused
ones.

Release Notes:

- N/A
2328e18cacFinn Evers committed on 9/16/2026, 2:08:49 PM· committed by GitHubparentf6838a7
17 files changedLine totals unavailable