Purpose: Add new requests status values to the Request status filter

User story:
As a library administrator
I want to filter requests by request status
So that I can efficiently browse and find request records and can limit my csv exports (to generate a hold shelf expiration list, for example)

Scenarios

1. Scenario

   • Given the Request status filter in the Requests app

   • When displayed

   • Then the following new request status values should be displayed

     • "Closed - Unfilled"

     • "Closed - Pickup expired"

2. Scenario

   • Given the requests list in the Requests app

   • When filters have been modified

   • Then:

     • The list should update to reflect the applied filters

     • The number of results displaying above the list should update to reflect the results returned

     • The csv export should be updated to only include the results returned in FOLIO