Allow multiple scanlators/languages to be selected at the same time

[notsonata]

Describe your suggested feature

I'm migrating from Mihon and a very useful feature is the ability to filter by Scanlators. I could enable two scanlators in case there are missing chapters from one. I mainly use Comick and I'm severely missing that feature here. Comick is pretty much unusable for me at the moment because a lot of my old entries have chapters from multiple scanlators.

Acknowledgements

• This is not a duplicate of an existing issue. Please look through the list of open issues before creating a new one.

[Nanomks1]

I really like Kotatsu, but the issues with Comic support have forced me to switch back to Mihon. I hope the developers can find a way to improve support for this source if they have the time