Mostly finishes rewards

src/main/java/net/knarcraft/minigames/command/SetArenaRewardTabCompleter.java

@@ -0,0 +1,23 @@
+package net.knarcraft.minigames.command;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+/**
+ * The tab completer for the reward setting command
+ */
+public class SetArenaRewardTabCompleter implements TabCompleter {
+
+    @Nullable
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s,
+                                      @NotNull String[] strings) {
+        return null;
+    }
+
+}