Alias osa_nazuna_(flower_knight_girl) -> osanai_nazuna

BUR #8494 has been approved by @evazion.

create alias osa_nazuna_(flower_knight_girl) -> osanai_nazuna

Not sure if the request should be done this way or vice versa, but they're referring to the same Vtuber.

Osa Nazuna is a character in the game Flower Knight Girl. Osanai Nazuna is a vtuber who based her avatar on the character.
I don't think it's wise to merge them.

Nevermind, Osa Nazuna is not a character, but a nickname for Osanai Nazuna, a vtuber who based her avatar on Nazuna_(flower_knight_girl)...

The bulk update request #8494 (forum #203514) has been approved by @evazion.