Add 4-column modifiers to o-deck

[AriannaChau]

The grid layout on the team page is very pixel specific:

Small screens:

Large screens:

It would be nice to have a layout that already takes this into account so we don't have to fiddle so much with specific values in the future.

[tylersticka]

Instead of adding a whole new layout, I think we should bump the max column modifiers for our Deck object from 3 to 4.