Added WorldLabel entity for better server-side labels

core/src/mindustry/ui/Menus.java

@@ -94,9 +94,7 @@ public class Menus{
 
     @Remote(variants = Variant.both)
     public static void labelReliable(String message, float duration, float worldx, float worldy){
-        if(message == null) return;
-
-        ui.showLabel(message, duration, worldx, worldy);
+        label(message, duration, worldx, worldy);
     }
 
     @Remote(variants = Variant.both)
@@ -113,6 +111,15 @@ public class Menus{
         ui.hudfrag.showToast(Fonts.getGlyph(Fonts.icon, (char)unicode), text);
     }
 
+    //internal use only
+    @Remote
+    public static void removeWorldLabel(int id){
+        var label = Groups.label.getByID(id);
+        if(label != null){
+            label.remove();
+        }
+    }
+
     public interface MenuListener{
         void get(Player player, int option);
     }