Currently this view has 20 instance variables, which is much too large. We should package these up into a view object and have it referenced. Some of the variables could be turned into methods rather than straight variable access. Any methods should likely be memoized.

Acceptance Criteria:

• New view object created and used within the controller and view
• Bonus: Move View::Inventory to the new place where the view object will live

For @dorner to do the first one of these so subsequent ones are easier.