Feature: grant search

[beechnut]

As someone who works with grants, I want to be able to search for a specific grant.

We'll know we're done when...

• Typing in the search field above the grants list instantly filters grants by any displayed grant attributes
• We can click on a grant, go back to the list, and have the search be persisted.

Tasks

• Add a search field
• Write tests for grant search
• Set up grant search
• Write tests for navigation persistence
• Set up navigation