Fixes#1387
### Context
While checking some other keyboard navigation issues, I found that I was
unable to create a crawl workflow using only keyboard navigation. This
PR fixes that!
### Changes
- Changes from `<div>`s to `<button>`s so that these can be selected
with tab and enter.
- Adds tabindex for correct selection of items
- Removes the H3 & combines with window title
- Adds width and height to image and width to its container, should make
for a more stable layout while loading (#1387)
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