fix(Channel): Add support for new feed filter nodes (#1163)

* feat(Feed): Update `getVideosFromMemo` to support `LockupView` nodes

* feat(parser): Add `DownloadListItemView` renderer parser

* feat(FilterableFeed): Add support for `ChipView` nodes

* feat(Channel): Add support for new feed filter system

Honestly the whole Channel class needs a cleanup. Maybe I'll do that at some point in the future.