Fixes Mechs (and all the other vehicles, and all of Megafauna) being considered as "stealthy" for the FoV (#11979)

* Fixes vehicles being hidden by FOV

* Makes megafauna also not be susceptible to FOV,

* This is what happens when I forget to compile.

* And of course I also didn't put the Skyrat comment

code/modules/mob/living/simple_animal/hostile/megafauna/_megafauna.dm

@@ -25,7 +25,7 @@
 	pull_force = MOVE_FORCE_OVERPOWERING
 	mob_size = MOB_SIZE_HUGE
 	layer = LARGE_MOB_LAYER //Looks weird with them slipping under mineral walls and cameras and shit otherwise
-	plane = GAME_PLANE_UPPER_FOV_HIDDEN
+	plane = GAME_PLANE_UPPER // SKYRAT EDIT - ORIGINAL: plane = GAME_PLANE_UPPER_FOV_HIDDEN
 	mouse_opacity = MOUSE_OPACITY_OPAQUE // Easier to click on in melee, they're giant targets anyway
 	flags_1 = PREVENT_CONTENTS_EXPLOSION_1
 	/// Crusher loot dropped when the megafauna is killed with a crusher

code/modules/vehicles/_vehicle.dm

@@ -6,7 +6,7 @@
 	max_integrity = 300
 	armor = list(MELEE = 30, BULLET = 30, LASER = 30, ENERGY = 0, BOMB = 30, BIO = 0, FIRE = 60, ACID = 60)
 	layer = VEHICLE_LAYER
-	plane = GAME_PLANE_FOV_HIDDEN
+	plane = GAME_PLANE // SKYRAT EDIT - ORIGINAL: plane = GAME_PLANE_FOV_HIDDEN
 	density = TRUE
 	anchored = FALSE
 	blocks_emissive = EMISSIVE_BLOCK_GENERIC