Add joim as an alias of join

In recognition of your outstanding accomplishments in the field of
Pokémon sciences, we hereby award you the highest of honors; a
commemorative alias.
Remove unnecessary checks for sound immunity
As of ecbc9bfd62, no effect provides an "immunity" to sound.
Correct Cheek Pouch mechanics

Didn't know this was still set to 25%...
Add sprites for Blue and Red Orb.
Fix Aromatic Mist.
Update UU suspect
Correct Gen 6 move targets.
Only Hoopa-Forme can use Hyperspace Fury.
Add the FAQ entry of custom avatar to /faq
Exclude Magikarp's Revenge from Smeargle's movepool in Challenge Cup