- Add "queue" items to DB

Change-Id: I461ac5b3a0af84241ad004edcd2b3ac1134d3159
- Handle user tapping on "Queue" filter
- Clean up deleting and creating of tables (queue is separate from spreadsheet tables)

Change-Id: I29f0f40e364e27e1301d8b1edd2e8335ac89b2a5