fix: clarify that the event is not fired on proxy updates

+ cleanup

api/src/main/java/com/velocitypowered/api/event/player/ServerUpdateTabListEvent.java

@@ -18,7 +18,7 @@ import java.util.Set;
 import java.util.UUID;
 
 /**
- * This event is fired, when a {@link com.velocitypowered.api.proxy.player.TabList Tablist} is updated.
+ * This event is fired, when a {@link com.velocitypowered.api.proxy.player.TabList Tablist} is updated by a {@link com.velocitypowered.api.proxy.ServerConnection server}.
  * It can be used to override or cancel updates for {@link TabListEntry}s.
  * Velocity will wait for this event to finish firing before forwarding it to the server.
  *

proxy/src/main/java/com/velocitypowered/proxy/tablist/VelocityTabList.java

@@ -456,7 +456,7 @@ public class VelocityTabList implements InternalTabList {
             Set.of(ServerUpdateTabListEvent.Action.REMOVE_PLAYER),
             Collections.unmodifiableList(entries)
         )
-    ).thenAcceptAsync(event -> { //not sure what should be used here!
+    ).thenAcceptAsync(event -> {
       if (event.getResult().isAllowed()) {
         if (event.getResult().getIds().isEmpty()) {
           for (UUID uuid : infoPacket.getProfilesToRemove()) {