[Feature Request] Add filter by scanlator groups

[notsonata]

Why/User Benefit/User Problem

Some sources like Comick provide multiple scanlator groups. Solo Leveling for example has 3000 chapters in total, from a bunch of groups. You can see why this would be an issue if i only wanted to read Asura's, for example.

What/Requirements

A new dropdown menu inside filters called "Scanlators" where you can select one or more scanlation groups.