Steam Deck touch screen fix

Thanks a ton to Bridgetmini for reporting the navigation issue on the Steam Deck touchscreen

• Touchscreen navigation is now much smoother.

• Dedicated jigsaw puzzle rotate button added (right-click for mouse, R1-L1 for Steam Deck/gamepad).

• After multiple tests, it turns out my game engine can’t detect touch positions on Steam Deck’s touchscreen, so slide-based features like sliders and drag-and-drop jigsaw puzzles won’t work with it. I tested on other touchscreen devices, and they work fine, so this is definitely a limitation of the engine for Steam Deck. Sorry for the inconvenience.. for now, I recommend using a gamepad for drag-and-drop actions.