Update game to use the correct Java version and directory

Updated the project configuration to use Java 21 and run the game from the correct directory, resolving previous Java version conflicts and ensuring proper execution.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: f6819c21-e85d-45ac-acde-604db2cfa4fe
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: ed832e25-fc86-4753-8cfc-80cfabc64a02
Replit-Helium-Checkpoint-Created: true

American-Identity-Project/Collectable.java

@@ -0,0 +1,7 @@
+import javax.swing.ImageIcon;
+
+public class Collectable extends Collidable {
+  public Collectable(int x, int y, int w, int h, ImageIcon i) {
+    super(x, y, w, h, i);
+  }
+}