1092 enhanced visualization layout

[longshuicy]

To Test:

• Get the the image-preview extractor running https://github.com/clowder-framework/pyclowder/blob/master/sample-extractors/image-preview-v2/binary_extractor.py
• Upload images
• Manually click the submit (file) to the binary extractor multiple times, so that multiple visualizations are generated
• Click "Learn More", "expand icon" on various visualization card and see changes.

[tcnichol]

@longshuicy I am testing this branch but noticing that on my previews, I am missing the 'learn more' or 'share link.' I just have the right lower corner box that enlarges the visualization.

This is the same for .png or .jpg files. I also ran the image extractor, and I still don't see the 'learn more' or 'share link.'

I did rm -rf node_modules and ran npm install again, as well as deleting volumes. Let me know if there's some reason I am not seeing this.

[ddey2]

I am noticing the same thing as @tcnichol
The expand button works great

[longshuicy]

I am noticing the same thing as @tcnichol The expand button works great

@tcnichol @ddey2 that's due to the "raw bytes" preview does not have any visualization information.
To show the Learn More you have to submit an image to the "Preview Extractor".