Conversion of realname and nickname from bay (#19120)

* Automatic changelog compile [ci skip]

* replace all bay instances for realname and nickname with tg

* add comments where uncertain of sanitisation needed

* Fix issue from git conflict..

* Fix issue causing setup menu not opening

* Attempt to clean up how name datums are handled

* Remove redundant check

* Fix number issues with character names

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Co-authored-by: vorestation-ci[bot] <199609141+vorestation-ci[bot]@users.noreply.github.com>

code/datums/components/species/xenochimera.dm

@@ -401,7 +401,7 @@
 		if(slot_is_synth && !isSynthetic()) // Prevents some pretty weird situations
 			to_chat(src,span_warning("Cannot apply character appearance. [slot_is_synth ? "The slot's character is synthetic." : "The slot's character is organic."] Slot must match the current body's synthetic state. Please try another character."))
 			return
-		from_slot = "You'll hatch using [client.prefs.real_name]'s appearance"
+		from_slot = "You'll hatch using [client.prefs.read_preference(/datum/preference/name/real_name)]'s appearance"
 
 	var/confirm = tgui_alert(src, "Are you sure you want to hatch right now? This will be very obvious to anyone in view. [from_slot]! Are you sure?", "Confirm Regeneration", list("Yes", "No"))
 	if(confirm == "Yes")