Add "Attemp to use the first volume cover" to delegated MangaDex

[NoFace33]

Describe your suggested feature

Make the "Attemp to use the first volume cover" toggle of MangaDex work on the delegated source.

Other details

No response

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• I have written a short but informative title.
• I have updated the app to version 1.10.4.
• I will fill out all of the requested information in this form.

[BrutuZ]

For reference, the relevant commits that introduced it were eaa7b15baec1759f34693d2dbaad2da870a89dd7 and 9a0c04c679ed8651873bff1c74d65f785375ff79

[JRodster]

Adding on to this (here, since it's related), TachiyomiSY is currently not reading the "cover quality" MangaDex setting as well.