QOL Update 0.1.1

Quick QOL update:

- Add close button in upgrade page instead of using ESC key. This helps solving the exit fullscreen issue.

- Isolate an auto release function of Charge Pickaxe upgrade. You can now choose to use it or not.

Thank you for all the feedback :D

Note:

I'm still struggle with upgrade page UX. The current drag right click is truly bad experience on trackpad, I'm currently experiment with normal drag in the backend, but the input intervenes with click-to-upgrade >_< I hope to find some solution soon!