feat: Award only 5 coins for headshots with the sniper (#264)

The reward for headshots with the sniper rifle has been reduced to 5 coins in order to better balance the in-game economy. This change helps distribute coins more fairly, preventing excessive accumulation from headshots and encouraging players to focus more on capturing the flag.

src/Application/Players/HeadShotSystem.cs

@@ -35,7 +35,7 @@ public void OnPlayerTakeDamage(Player player, Player issuer, float amount, Weapo
         {
             PlayerInfo issuerInfo = issuer.GetInfo();
             issuerInfo.AddHeadShots();
-            issuerInfo.StatsPerRound.AddCoins(50);
+            issuerInfo.StatsPerRound.AddCoins(5);
             playerRepository.UpdateHeadShots(issuerInfo);
             issuer.GameText("Headshot +1", 3000, 3);
             issuer.SendClientMessage(Color.Yellow, "Headshot +1");