[Magiclysm] Fix werewolf aura

[Standing-Storm]

Summary

Bugfixes "[Magiclysm] Fix werewolf aura"

Purpose of change

Someone pointed out that werewolf aura uses the light_healing spell for its healing, which is a problem for two reasons. One, that spell now causes pain when used, and two, it scales with the known level of the spell, meaning it doesn't scale unless the werewolf ring user knows the spell.

Describe the solution

Use the potion fruit healing effect instead, which is fixed at 1 HP healed.

Reduce the timer to 2 minutes, from 15, reflecting the lower amount healed.

Describe alternatives you've considered

Testing

Additional context