Add support for preconfigured hero/logo combinations

[Expack3]

It would be a nice QoL feature if SGDBoop could download preconfigured hero/logo combinations, including where the logo is supposed to be positioned, so users don't have to do it themselves. I realize this would likely require changing SteamGridDB itself for this change, since it only supports loose assets.

[mpaterakis]

This can now be done via 30d634ab7c654609ca42be156b64161856caba59