Split cards listed with both halves show up in separate category from instants and sorceries when sorted by type

[richardneal]

For instance, a decklist with 1 Ionize, 1 Seal Away, and 1 Expansion // Explosion will be grouped correctly when just Expansion is written:

1 Expansion
1 Ionize

1 Seal Away

However, when the card name is written out as Expansion // Explosion, it goes into its own category:

1 Ionize

1 Seal Away

1 Expansion // Explosion

[richardneal]

Submitted #59 with a fix.

[richardneal]

Oh, after digging in more, I realized that it's not just split cards that have multiple names, as it looks like DFCs, flip cards, and Battlebond pairs fall in the same camp. Maybe there's not an easy fix.