vtuber siro

BUR #23398 has been approved by @nonamethanks.

mass update dennou_shoujo_youtuber_siro -> .live
nuke dennou_shoujo_youtuber_siro

old holdover when vtuber channels each got a copytag instead of organization tags

BUR #23399 has been approved by @nonamethanks.

create alias siro_(dennou_shoujo_youtuber_siro) -> dennou_shoujo_siro

splitting this one off since its hard to tell whats her preferred translated/romanized name
ive seen
shojo: https://www.pixiv.net/en/tags/%E9%9B%BB%E8%84%B3%E5%B0%91%E5%A5%B3YouTuber%E3%82%B7%E3%83%AD/illustrations, https://virtualyoutuber.fandom.com/wiki/Dennou_Shojo_Siro
cyber girl: https://www.goodsmile.info/en/product/7624/Nendoroid+Cyber+girl+Siro.html , https://www.pixiv.net/en/tags/%E9%9B%BB%E8%84%B3%E5%B0%91%E5%A5%B3%E3%82%B7%E3%83%AD/illustrations

but i dont really tbh so ill just do this for now

The bulk update request #23398 (forum #269108) has been approved by @nonamethanks.

The bulk update request #23399 (forum #269109) has been approved by @nonamethanks.