Fletchling has fletchinders cry

Fletchlings sound file seems to be either bugged or an oversight led to both birds being assigned to the same audio file.

If there are going to be further updates, perhaps me highlighting this observation will help out a bit ::slight_smile:

If theres no further planned updates then, it is what it is. A neat quirk akin to gen 1 - gen 5 charizard having the same cry as ryhorn XD