Fixes riding vehicles on tables and lying on beds (#80053)

## About The Pull Request
Fixes #80027. My bad.
EDIT: Also fixes #80050.

## Why It's Good For The Game
See the issues above.

## Changelog
🆑
fix: Fixed an issue with the offsets of ridden vehicles on tables, and
another when buckled to a bed.
/🆑

code/game/objects/structures/beds_chairs/bed.dm

@@ -67,16 +67,6 @@
 	deconstruct(disassembled = TRUE)
 	return TRUE
 
-/obj/structure/bed/post_buckle_mob(mob/living/buckled)
-	. = ..()
-	buckled.base_pixel_y -= elevation
-	buckled.pixel_y -= elevation
-
-/obj/structure/bed/post_unbuckle_mob(mob/living/buckled)
-	. = ..()
-	buckled.base_pixel_y += elevation
-	buckled.pixel_y += elevation
-
 /// Medical beds
 /obj/structure/bed/medical
 	name = "medical bed"
@@ -342,13 +332,11 @@
 /obj/structure/bed/double/post_buckle_mob(mob/living/target)
 	. = ..()
 	if(buckled_mobs.len > 1 && !goldilocks) // Push the second buckled mob a bit higher from the normal lying position
-		target.base_pixel_y += 12
-		target.pixel_y += 12
+		target.pixel_y += 6
 		goldilocks = target
 
 /obj/structure/bed/double/post_unbuckle_mob(mob/living/target)
 	. = ..()
 	if(target == goldilocks)
-		target.base_pixel_y -= 12
-		target.pixel_y -= 12
+		target.pixel_y -= 6
 		goldilocks = null

code/game/objects/structures/tables_racks.dm

@@ -766,16 +766,14 @@
 	visible_message(span_notice("[user] lays [pushed_mob] on [src]."))
 
 ///Align the mob with the table when buckled.
-/obj/structure/bed/post_buckle_mob(mob/living/buckled)
+/obj/structure/table/optable/post_buckle_mob(mob/living/buckled)
 	. = ..()
-	buckled.base_pixel_y -= 6
-	buckled.pixel_y -= 6
+	buckled.pixel_y += 6
 
 ///Disalign the mob with the table when unbuckled.
-/obj/structure/bed/post_unbuckle_mob(mob/living/buckled)
+/obj/structure/table/optable/post_unbuckle_mob(mob/living/buckled)
 	. = ..()
-	buckled.base_pixel_y += 6
-	buckled.pixel_y += 6
+	buckled.pixel_y -= 6
 
 /// Any mob that enters our tile will be marked as a potential patient. They will be turned into a patient if they lie down.
 /obj/structure/table/optable/proc/mark_patient(datum/source, mob/living/carbon/potential_patient)