Add a message to the staffintro of groupchats about expiration

chat-commands.js

@@ -713,7 +713,7 @@ const commands = {
 			parentid: parent,
 			auth: {},
 			introMessage: `<div style="text-align: center"><table style="margin:auto;"><tr><td><img src="//play.pokemonshowdown.com/fx/groupchat.png" width=120 height=100></td><td><h2>${titleMsg}</h2><p>Follow the <a href="/rules">Pokémon Showdown Global Rules</a>!<br>Don't be disruptive to the rest of the site.</p></td></tr></table></div>`,
-			staffMessage: `<p>You can invite new users using <code>/invite</code>. Be careful with who you invite!</p><p>Commands: <button class="button" name="send" value="/roomhelp">Room Management</button> | <button class="button" name="send" value="/tournaments help">Tournaments</button></p><p>As creator of this groupchat, <u>you are entirely responsible for what occurs in this chatroom</u>. Global rules apply at all times.</p><p>If this room is used to break global rules or disrupt other areas of the server, <strong>you as the creator will be held accountable and punished</strong>.</p>`,
+			staffMessage: `<p>Groupchats are temporary rooms, and will expire if there hasn't been any activity in 40 minutes.</p><p>You can invite new users using <code>/invite</code>. Be careful with who you invite!</p><p>Commands: <button class="button" name="send" value="/roomhelp">Room Management</button> | <button class="button" name="send" value="/tournaments help">Tournaments</button></p><p>As creator of this groupchat, <u>you are entirely responsible for what occurs in this chatroom</u>. Global rules apply at all times.</p><p>If this room is used to break global rules or disrupt other areas of the server, <strong>you as the creator will be held accountable and punished</strong>.</p>`,
 		});
 		if (targetRoom) {
 			// The creator is a Room Owner in subroom groupchats and a Host otherwise..