Implement a browse display that shows a random set of items

[tpendragon]

Summary or User Story

This is the first step to our "bubble up" browse display. Each item should be separated, and there should be multiple items per row.

Start with 500.

Acceptance Criteria

This section can be completed by the DLS team. Some requirements to consider
including:

• There's a page that displays 500 random items, with a few per row. /browse
• There is a thumbnail and title for every item.
• Clicking the item sends them to the show page for that item in a new tab.
• Display one thumbnail for each item for now.
• You should be able to tab through the items with a keyboard.

First step

Make a route.

Example of a starting point