Allow _AND as well as _OR when filtering by with_tags (dupe of discussion in another repo)

[m-shum]

5 years later we're back to a discussion filed here 😅.

Cumulative filters are a really common ask from clients and having to add datasources and fields instead of being able to use Storyblok's native tagging functionality seems like a missed opportunity. It would be fantastic to be able to filter stories using the with_tags query and being able to specify or or and.

[maoberlehner]

Hey @m-shum! Just contacted the product team about this. I'll keep you updated.