Draft: Uv 3.1.1

This is on top of !859 (closed), which should land first.

Local Checklist

• Read our Contributing guide (for newcomers)
• QA-ed locally?
• Rebased with trunk branch?

What does this Merge Request do?

Updates Universal Viewer to the most recent 3.x version.

Where should a reviewer start?

package.json

Manual testing steps?

Start up the app and look at some things in Universal Viewer.

Screenshots