fix: bedrock nicknames not accepted

src/main/java/me/roinujnosde/titansbattle/commands/contexts/OnlinePlayerContext.java

@@ -0,0 +1,32 @@
+package me.roinujnosde.titansbattle.commands.contexts;
+
+import co.aikar.commands.BukkitCommandExecutionContext;
+import co.aikar.commands.InvalidCommandArgument;
+import co.aikar.commands.MinecraftMessageKeys;
+import co.aikar.commands.bukkit.contexts.OnlinePlayer;
+import me.roinujnosde.titansbattle.TitansBattle;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+public class OnlinePlayerContext extends AbstractContextResolver<OnlinePlayer>  {
+
+    public OnlinePlayerContext(@NotNull TitansBattle plugin) {
+        super(plugin);
+    }
+
+    @Override
+    public @NotNull Class<OnlinePlayer> getType() {
+        return OnlinePlayer.class;
+    }
+
+    @Override
+    public OnlinePlayer getContext(BukkitCommandExecutionContext cec) throws InvalidCommandArgument {
+        String name = cec.popFirstArg();
+        Player player = Bukkit.getPlayerExact(name);
+        if (player == null) {
+            throw new InvalidCommandArgument(MinecraftMessageKeys.NO_PLAYER_FOUND_SERVER, "{search}", name);
+        }
+        return new OnlinePlayer(player);
+    }
+}

src/main/java/me/roinujnosde/titansbattle/managers/CommandManager.java

@@ -75,6 +75,7 @@ private void registerContexts() {
         registerContext(new ChallengeRequestContext(getPlugin()));
         registerContext(new ArenaConfigurationContext(getPlugin()));
         registerContext(new GameConfigurationContext(getPlugin()));
+        registerContext(new OnlinePlayerContext(getPlugin()));
     }
 
     private void registerReplacements() {