Add camera to scanner page

[slifty]

Task

Description

The scanner page has a few complex elements on it, but this issue is specifically around the "Camera" component.

This will render a live view of what the camera sees, and provide a "take picture" button which will take a picture.

We don't necessarily need to store the picture as part of this issue (though the image should be created and ready to pass to whatever object is ultimately responsible for it)

Relevant resources / research
None

Related Issues
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