Change the "Who" verb to display a table rather than a list (#53839)

Doesn't apply for active admins since those have longer lines that wouldn't fit well.

code/modules/client/verbs/who.dm

@@ -1,3 +1,5 @@
+#define DEFAULT_WHO_CELLS_PER_ROW 4
+
 /client/verb/who()
 	set name = "Who"
 	set category = "OOC"
@@ -5,9 +7,11 @@
 	var/msg = "<b>Current Players:</b>\n"
 
 	var/list/Lines = list()
+	var/columns_per_row = DEFAULT_WHO_CELLS_PER_ROW
 
 	if(holder)
 		if (check_rights(R_ADMIN,0) && isobserver(src.mob))//If they have +ADMIN and are a ghost they can see players IC names and statuses.
+			columns_per_row = 1
 			var/mob/dead/observer/G = src.mob
 			if(!G.started_as_observer)//If you aghost to do this, KorPhaeron will deadmin you in your sleep.
 				log_admin("[key_name(usr)] checked advanced who in-round")
@@ -50,8 +54,16 @@
 			else
 				Lines += "[C.key] ([round(C.avgping, 1)]ms)"
 
+	var/num_lines = 0
+	msg += "<table style='width: 100%; table-layout: fixed'><tr>"
 	for(var/line in sortList(Lines))
-		msg += "[line]\n"
+		msg += "<td>[line]</td>"
+
+		num_lines += 1
+		if (num_lines == columns_per_row)
+			num_lines = 0
+			msg += "</tr><tr>"
+	msg += "</tr></table>"
 
 	msg += "<b>Total Players: [length(Lines)]</b>"
 	to_chat(src, msg)
@@ -87,3 +99,4 @@
 		msg += "<span class='info'>Adminhelps are also sent through TGS to services like IRC and Discord. If no admins are available in game adminhelp anyways and an admin will see it and respond.</span>"
 	to_chat(src, msg)
 
+#undef DEFAULT_WHO_CELLS_PER_ROW