ISBN Support (#1985)

* Fixed a bug where weblinks would always show

* Started to try and support ico -> png conversion by manually grabbing image data out, but it's hard as hell.

* Implemented ability to parse out ISBN codes for books and ISBN-13 codes for ComicInfo. I can't figure out ISBN-10.

* Fixed Favicon not working on anything but windows

* Implemented ISBN support into Kavita

* Don't round so much when transforming bytes

API/Data/DataContext.cs

@@ -121,6 +121,10 @@ public sealed class DataContext : IdentityDbContext<AppUser, AppRole, int,
         builder.Entity<SeriesMetadata>()
             .Property(b => b.WebLinks)
             .HasDefaultValue(string.Empty);
+
+        builder.Entity<Chapter>()
+            .Property(b => b.ISBN)
+            .HasDefaultValue(string.Empty);
     }