Add options to disable tab completion and extend username completion, also limit the total number of username suggestions to 200 per request

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PaperListener.java

@@ -318,6 +318,9 @@ public class PaperListener implements Listener {
     }
 
     @EventHandler public void onAsyncTabCompletion(final AsyncTabCompleteEvent event) {
+        if (!Settings.Paper_Components.ASYNC_TAB_COMPLETION) {
+            return;
+        }
         String buffer = event.getBuffer();
         if (!(event.getSender() instanceof Player)) {
             return;