Fix dependency handling on move or rename in the filesystem dock

[Jordyfel]

Fixes #79850.
...and probably more.

Moving a scene's dependency in the filesystem while the scene is open should no longer corrupt the scene.
Moving a scene together with it's dependency while it's open should no longer crash the engine.
Also fixes most of the error spam that was happening when moving things around.

Open scenes which depend on moved files are now saved before the move, which prevents losing unsaved changes like before, but in a less error-prone way.
The ResourceUID system is properly informed of resources changing paths now, this was the source of most of the problems.
A lot of expensive function calls were removed, moving things around in the filesystem should be faster.
There are some errors remaining related to scripts being looked for in the old location, but nothing seems to actually break now.

Please test this by moving stuff around in the filesystem with a copy of your non-trivial project.

Bugsquad edit: Fixes #77289 Fixes #59116

[KoBeWi]

Seems like this fixes all crashes and errors when moving scenes (I didn't do super extensive testing though).
However the scene internal ids of resources change after moving. Is there any way to preserve them? (not critical for this PR though)

[Jordyfel]

Currently, I don't know what this depends on... I wish I could understand all the related systems so I can clean up these functions properly instead of continuing this chain of patch after patch, but that would take a while.

[Jordyfel]

Also found #59116

[YuriSizov]

Looks reasonable enough to give it a try. Great job!

[YuriSizov]

Thanks! Let's see if anything falls off :)