[APPROVED] Fix category: character

The bulk update request #17 has been approved by @thatenemy.

category kero -> character
category ueno_(ueno-san_wa_bukiyou) -> character

Reason:

EDIT: The bulk update request #17 (forum #317) has been approved by @thatenemy.

The bulk update request #17 (forum #317) has been approved by @thatenemy.

The bulk update request #20 has been approved by @thatenemy.

category li_xiaolang -> character

Reason: li_xiaolang is a character from cardcaptor_sakura

EDIT: The bulk update request #20 (forum #333) has been approved by @thatenemy.

The bulk update request #20 (forum #333) has been approved by @thatenemy.