up ports a bunch of TGS commands (#17961)

* up ports a bunch of TGS commands

* .

* needing this

* ...

* Update datacore.dm

* fix that

* at least stack that

* rework all user name handling

* urg

* urg

* .

* .

* .

* up port this

* make this clearer

* .

* .

* .

* fix that

* .

* add returns

* player ticket chat

* this

* .

* .

* umm

* adjust messages

* clean smitecode up

* .

* ummm

* .

* command filter

code/datums/chat_message.dm

@@ -199,8 +199,11 @@ var/list/runechat_image_cache = list()
 
 	// Translate any existing messages upwards, apply exponential decay factors to timers
 	message_loc = target.runechat_holder(src)
+	if(!owned_by)
+		qdel(src)
+		return
 	RegisterSignal(message_loc, COMSIG_PARENT_QDELETING, PROC_REF(qdel_self))
-	if(owned_by && owned_by.seen_messages)
+	if(owned_by.seen_messages)
 		var/idx = 1
 		var/combined_height = approx_lines
 		for(var/datum/chatmessage/m as anything in owned_by.seen_messages[message_loc])

code/datums/datacore.dm

@@ -17,7 +17,7 @@
 	var/static/list/locked = list()
 
 
-/datum/datacore/proc/get_manifest(monochrome, OOC)
+/datum/datacore/proc/get_manifest(monochrome, OOC,var/snowflake = FALSE)
 	var/list/heads = new()
 	var/list/sec = new()
 	var/list/eng = new()
@@ -40,6 +40,7 @@
 		.manifest tr.alt td {[monochrome?"border-top-width: 2px":"background-color: [OOC?"#373737; color:white":"#DEF"]"]}
 	</style></head>
 	<table class="manifest" width='350px'>
+	[snowflake?"<tr><th colspan=3 style = \"background-color: #026e6a\"><b>Online players:</b> [TGS_CLIENT_COUNT]</th></tr><tr><th colspan=3 style = \"background-color: #027a76\"><b>Crew members:</b> [GLOB.data_core.general.len]</th></tr><tr class='head'>":""]
 	<tr class='head'><th>Name</th><th>Rank</th><th>Activity</th></tr>
 	"}
 	var/even = 0