Tabcomplete: Send /crq cmdsearch to the current room

This is so the command knows if you have access to that command in the current room.

play.pokemonshowdown.com/js/client-chat.js

@@ -378,7 +378,7 @@
 							self.handleTabComplete($textbox, reverse);
 						}
 					});
-					app.send('/crq cmdsearch ' + text);
+					this.send('/crq cmdsearch ' + text);
 					return true;
 				} else if (!isCommandSearch) {
 					delete this.tabComplete.isCommand;