Error with slide audio when sliding -> jumping -> landing

[Phazorknight]

@ac-arcana

I've encountered this issue and was able to replicate it reliably:

When I sprint, slide and jump while sliding, the slide sound keeps playing (should probably stop as soon as the player is in the air).
If the sound is still playing by the time I land, the game errors:

player.gd: line 764: slide_audio_player.stop() - Cannot call method `stop` on a previously freed instance.

[ac-arcana]

I'll look at it tomorrow :)

[Phazorknight]

Sounds good, no rush!

[ac-arcana]

#135

[Phazorknight]

Sweet, thanks for this fix!
Closing this now.