- Add LocalPlayer class for human player
- Implement render method in Player class
- Update State class to include local player
- Adjust player rendering in State class

- Update Player and LocalPlayer classes to take an additional parameter `is_current_player` in the render method
- Modify the render logic in LocalPlayer to only dim cards if it's not the current player's turn
- Update the State class to pass the correct `is_current_player` flag when rendering each player

- Use uppercase for other constant variables

…ttings

- Add CARD_SCALE constant to card.cpp for consistent scaling
- Remove redundant sprite scaling in deck.hpp, discard_pile.hpp, and player.hpp

- Implement Button class with hover and click detection
- Add rendering functionality with visual feedback on hover

- Update LocalPlayer class to handle card selection and color picking
- Add button rendering and click detection for color picker
- Modify State class to pass render target to LocalPlayer
- Refactor main loop to continuously update game state