More improvements and bugfixes

Improvements:

• Now while playing a flute, the interface shows which buttons you can use.
• During boat races, now the floor shows the shape of the circuit to avoid becoming lost.
• Walking speed when using the light spell has been increased.
• When using the light spell on a crystal, now a popup appears showing the buttons for aiming.
• Mole's hitbox when being hurt by a boulder from Yami is now larger.

Fixed bugs:

• A few players used to lose their minecart in the room where you switch tracks using the waitress.
• Flute sound now depends on the SFX volume from the game settings.
• Light spell allowed to go through the triggers which showed cinematics, letting you skip them.
• Other minor bugfixes.