refactors statpanel to use tgui API (#66971)

refactors the status panel to utilize the tgui/byond communication APIs instead of passing along href data, as well as converts the entirety of it into a datum/tgui_window

Co-authored-by: Aleksej Komarov <stylemistake@gmail.com>

code/modules/mob/dead/new_player/new_player.dm

@@ -427,14 +427,12 @@
 	// First we detain them by removing all the verbs they have on client
 	for (var/v in client.verbs)
 		var/procpath/verb_path = v
-		if (!(verb_path in GLOB.stat_panel_verbs))
-			remove_verb(client, verb_path)
+		remove_verb(client, verb_path)
 
 	// Then remove those on their mob as well
 	for (var/v in verbs)
 		var/procpath/verb_path = v
-		if (!(verb_path in GLOB.stat_panel_verbs))
-			remove_verb(src, verb_path)
+		remove_verb(src, verb_path)
 
 	// Then we create the interview form and show it to the client
 	var/datum/interview/I = GLOB.interviews.interview_for_client(client)

code/modules/mob/mob.dm

@@ -897,7 +897,7 @@
 			LAZYREMOVE(mob_spell_list, S)
 			qdel(S)
 	if(client)
-		client << output(null, "statbrowser:check_spells")
+		client.stat_panel.send_message("check_spells")
 
 /**
  * Checks to see if the mob can cast normal magic spells.