Added Pixiv Ugoira conversion rules to [Linx Amender](https://openuserjs.org/scripts/TimidScript/[TS]_Linx_Amender
). There are four rules, that allow you to download the Ugoira file in gif, webm, apng and xng. Each rules adds two buttons, one for conversion and download of preview size and one for full size.
Image below shows current online rules that are available.