Call the UserPanel `Action` when clicking on the flag

osu.Game/Users/Drawables/UpdateableFlag.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -23,6 +24,12 @@ public Country Country
         /// </summary>
         public bool ShowPlaceholderOnNull = true;
 
+        /// <summary>
+        /// Perform an action in addition to showing the country ranking.
+        /// This should be used to perform auxiliary tasks and not as a primary action for clicking a flag (to maintain a consistent UX).
+        /// </summary>
+        public Action Action;
+
         public UpdateableFlag(Country country = null)
         {
             Country = country;
@@ -52,6 +59,7 @@ protected override Drawable CreateDrawable(Country country)
 
         protected override bool OnClick(ClickEvent e)
         {
+            Action?.Invoke();
             rankingsOverlay?.ShowCountry(Country);
             return true;
         }

osu.Game/Users/ExtendedUserPanel.cs

@@ -53,7 +53,8 @@ protected override void LoadComplete()
 
         protected UpdateableFlag CreateFlag() => new UpdateableFlag(User.Country)
         {
-            Size = new Vector2(39, 26)
+            Size = new Vector2(39, 26),
+            Action = Action,
         };
 
         protected SpriteIcon CreateStatusIcon() => statusIcon = new SpriteIcon