Update CODEOWNERS

[Repiteo]

While the codeowner file is in a MUCH better spot than it was before, there was still quite a few edgecases that weren't fully accounted for. This PR attempts to address that by adding a few cases that were missing or weren't using wildcards appropriately. While this PR doesn't account for all of them, it ensures that there's a more appropriate baseline for many of these cases where buildsystem wasn't appropriate

[AThousandShips]

I'm not sure if the super groups like @godotengine/_editor actually work as such

[Repiteo]

I think super groups still work, as _platforms was used before & child members of that can still approve PRs¹. I wholly believe they should be used sparingly though, which is why I only added them as baseline/fallback cases.

Footnotes

1. https://github.com/godotengine/godot/pull/96399#pullrequestreview-2315735412 ↩

[AThousandShips]

The ones here look good I think, can't speak to missing cases but I think this is good to go

[Repiteo]

I HAVE THE POWER

[bruvzg]

These filters seem to be too generic: e.g, change to servers/rendering/renderer_rd/storage_rd/texture_storage.cpp trigger /servers/**/text* not /servers/**/rendering* and result in a wrong team assignment.

/servers/rendering/renderer_rd/storage_rd/texture_storage.cpp
/servers/**                              /text*