Update changelog generation (#18915)

Updated the changelog system


![image](https://github.com/Aurorastation/Aurora.3/assets/65877598/da2fc947-7179-4b57-9b6a-284b221529ed)

code/modules/asset_cache/asset_cache.dm

@@ -738,3 +738,22 @@ var/list/asset_datums = list()
 /// (Generated names do not include file extention.)
 /proc/generate_asset_name(file)
 	return "asset.[md5(fcopy_rsc(file))]"
+
+
+/datum/asset/changelog_item
+	_abstract = /datum/asset/changelog_item
+	var/item_filename
+
+/datum/asset/changelog_item/New(date)
+	item_filename = SANITIZE_FILENAME("[date].yml")
+	SSassets.transport.register_asset(item_filename, file("html/changelogs/archive/" + item_filename))
+
+/datum/asset/changelog_item/send(client)
+	if (!item_filename)
+		return
+	. = SSassets.transport.send_assets(client, item_filename)
+
+/datum/asset/changelog_item/get_url_mappings()
+	if (!item_filename)
+		return
+	. = list("[item_filename]" = SSassets.transport.get_asset_url(item_filename))

code/modules/mob/mob.dm

@@ -528,16 +528,14 @@
 /client/verb/changes()
 	set name = "Changelog"
 	set category = "OOC"
-	var/datum/asset/changelog = get_asset_datum(/datum/asset/simple/changelog)
-	changelog.send(src)
+	if(!GLOB.changelog_tgui)
+		GLOB.changelog_tgui = new /datum/changelog()
 
-	var/datum/browser/changelog_win = new(mob, "changes", "Changelog", 675, 650)
-	changelog_win.set_content(file2text('html/changelog.html'))
-	changelog_win.open()
+	GLOB.changelog_tgui.ui_interact(mob)
 	if(prefs.lastchangelog != GLOB.changelog_hash)
 		prefs.lastchangelog = GLOB.changelog_hash
 		prefs.save_preferences()
-		winset(src, "rpane.changelog", "background-color=none;font-style=;")
+		winset(src, "infowindow.changelog", "font-style=;")
 
 /mob/verb/observe()
 	set name = "Observe"