Release 6a540f8

Enhance terrain management and player connection handling

- Updated tileset configuration in tileset.tres to include terrain sets for various tile types (Grass, Water, Sand, Cement) to improve terrain management.
- Refactored Multihelper.gd to enforce type safety for player connection signals and streamline player connection handling.
- Improved player connection and disconnection signal handling in generalHud.gd to ensure accurate player list updates.
- Adjusted player.gd to ensure stamina calculations are more precise by enforcing float types for stamina values.
- Updated player.tscn and other scene files to reflect changes in resource paths and ensure consistency across the project.
- Enhanced error handling in NavHelper.gd and map.gd for better robustness in tile management and navigation.

These changes collectively improve the game's terrain management, player connection handling, and overall code clarity.