[Feature request] Add thalia.de as websource

[coastgnu]

Thalia is a big online and local bookstore in Germany with stores in most German Cities!

There is a search bar on top of their page for

Titel, Autor*in, Stichwort, ISBN

Thank you in advance

thomas

[tfonteyn]

I'm going to dismiss this one in favour of you using the localized amazon.de site.

It would (probably) not really give any more/extra information. Should Amazon become to difficult to support (they try blocking apps) then I can always revisit this issue.

[tfonteyn]

as mentioned in #73, no promises, but I'll try to revisit this request in the future.

[tfonteyn]

For the benefit of anyone reading these comments: dnb.de support was added in 6.3.0