[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/admin/smites/imaginary_friend_special.dm

@@ -138,8 +138,8 @@
 		if(isliving(client_mob))
 			client_mob.ghostize()
 
-		var/mob/camera/imaginary_friend/friend_mob = client_mob.change_mob_type(
-			new_type = /mob/camera/imaginary_friend,
+		var/mob/eye/imaginary_friend/friend_mob = client_mob.change_mob_type(
+			new_type = /mob/eye/imaginary_friend,
 			location = get_turf(client_mob),
 			delete_old_mob = TRUE,
 		)