[NO GBP] Renames mob/camera to mob/eye and makes everything follow suit (#87684)

## Why It's Good For The Game

Clarity and consistency regarding DM's systems. 
Internally, `eye` is used for anything that controls the client's view.

![image](https://github.com/user-attachments/assets/7d1291e1-7a6a-4736-a14b-97834e89846f)
How `eye` is used in DM is consistent with how we use the term, so I
figured this would add clarity.

Being named mob/camera also makes it unclear exactly what it's doing.
The name implies that it would function similar to how mob/camera/ai_eye
does, but most of the time it's only used as... an eye.

My ulterior reason for this PR is that I want to clean up
mob/camera/ai_eye and it's subtypes after this.
## Changelog

🆑
server: mob/camera has been renamed to mob/eye, which may break
downstreams
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/modules/unit_tests/unit_test.dm

@@ -285,13 +285,13 @@ GLOBAL_VAR_INIT(focused_tests, focused_tests())
 	//We have a baseturf limit of 10, adding more than 10 baseturf helpers will kill CI, so here's a future edge case to fix.
 	returnable_list += typesof(/obj/effect/baseturf_helper)
 	//No tauma to pass in
-	returnable_list += typesof(/mob/camera/imaginary_friend)
+	returnable_list += typesof(/mob/eye/imaginary_friend)
 	//No heart to give
 	returnable_list += typesof(/obj/structure/ethereal_crystal)
 	//No linked console
-	returnable_list += typesof(/mob/camera/ai_eye/remote/base_construction)
+	returnable_list += typesof(/mob/eye/ai_eye/remote/base_construction)
 	//See above
-	returnable_list += typesof(/mob/camera/ai_eye/remote/shuttle_docker)
+	returnable_list += typesof(/mob/eye/ai_eye/remote/shuttle_docker)
 	//Hangs a ref post invoke async, which we don't support. Could put a qdeleted check but it feels hacky
 	returnable_list += typesof(/obj/effect/anomaly/grav/high)
 	//See above