Ports CM's langchat to replace floating chat. (#20818)

Works generally better and will allow for better customization and emote
display.

---------

Co-authored-by: realmattatlas <liermattia@gmail.com>

code/modules/client/client_defines.dm

@@ -100,3 +100,7 @@
 
 	/// The DPI scale of the client. 1 is equivalent to 100% window scaling, 2 will be 200% window scaling
 	var/window_scaling
+
+	//screen_text vars
+	///lazylist of screen_texts for this client, first in this list is the one playing
+	var/list/atom/movable/screen/text/screen_text/screen_texts

code/modules/client/client_procs.dm

@@ -386,6 +386,8 @@ GLOBAL_LIST_INIT(localhost_addresses, list(
 	// Forcibly enable hardware-accelerated graphics, as we need them for the lighting overlays.
 	winset(src, null, "command=\".configure graphics-hwmode on\"")
 
+	winset(src, "map", "style=\"[MAP_STYLESHEET]\"")
+
 	if(IsGuestKey(key) && GLOB.config.external_auth)
 		src.authed = FALSE
 		var/mob/abstract/unauthed/m = new()

code/modules/client/preference_setup/general/01_basic.dm

@@ -262,7 +262,7 @@
 			pref.floating_chat_color = new_fc_color
 			var/mob/living/carbon/human/H = preference_mob()
 			if(ishuman(H))
-				H.set_floating_chat_color(new_fc_color)
+				H.langchat_color = pref.floating_chat_color
 			return TOPIC_REFRESH
 
 	else if(href_list["speech_bubble_type"])

code/modules/client/preferences.dm

@@ -412,7 +412,7 @@ GLOBAL_LIST_EMPTY_TYPED(preferences_datums, /datum/preferences)
 	character.set_species(species)
 	if(character.dna)
 		character.dna.real_name = character.real_name
-	character.set_floating_chat_color(floating_chat_color)
+	character.langchat_color = floating_chat_color
 
 	character.flavor_texts["general"] = flavor_texts["general"]
 	character.flavor_texts[BP_HEAD] = flavor_texts[BP_HEAD]