change robot to a final class for better standards

TeamCode/src/main/java/org/firstinspires/ftc/teamcode/Robot.java

@@ -7,8 +7,7 @@ import org.firstinspires.ftc.teamcode.hardware.RobotHardware;
 /**
  * Represents and initializes the complete robot object with subsystems.
  */
-public class Robot {
-
+public final class Robot {
     public final RobotHardware robotHardware;
 
     // Declare other public final subsystems here