Update v1.0.1

Hello!
This time, I made the following updates.

• Implemented a pause screen. Hold the Esc key to pause the game.
• Fixed a situation in some levels where the game could get stuck due to being able to kill an enemy before combat.
• Improved pathfinding.

If you have any problems, please send it from the "Report a bug" button.

By the way, there are still bugs that affect the progress of the game. I'm not sure what the cause is, so I'll continue to investigate.