Code Readability - Mobs (misc) (#18266)

* mobs misc

* remove implied src

code/modules/mob/camera/camera.dm

@@ -2,7 +2,7 @@
 
 /mob/camera
 	name = "camera mob"
-	density = 0
+	density = FALSE
 	move_force = INFINITY
 	move_resist = INFINITY
 	status_flags = GODMODE  // You can't damage it.
@@ -10,7 +10,7 @@
 	see_in_dark = 8
 	invisibility = 101  // No one can see us
 	sight = SEE_SELF
-	move_on_shuttle = 0
+	move_on_shuttle = FALSE
 
 /mob/camera/experience_pressure_difference()
 	return