alias neko_no_sayo -> sayo_(voicevox)

BUR #18287 has been approved by @nonamethanks.

create alias neko_no_sayo -> sayo_(voicevox)

This character, Sayo, is known only by Sayo in pretty much all of her official sources: her CoeFont page, her VOICEVOX page, her official website, etc. The only place this isn't the case is her official Twitter page, which happens to use the handle @NEKO_NO_SAYO. So did the initial chartag come from this? As far as I can tell, it did.

I'm proposing _(voicevox) as a qualifier because the tag was already made and because there's more fanart of her as a VOICEVOX character, 31 images in pixiv under "VOICEVOX 小夜" vs. just one under "CoeFont 小夜".

Edit: But if there any better qualifiers, please suggest some.

This bulk update request is pending automatic rejection in 5 days.

The twitter handle is as such because "sayo" was already taken, most likely. It's just "sayo the cat" anyway, so given that other primary sources don't use the same name I think this alias is valid.

The bulk update request #18287 (forum #247589) has been approved by @nonamethanks.