Add image grid 🍱

[jwyg]

Desired behaviour

• Input csv with list of 10 image URLs in one column and frequency (shares/likes/etc) in second column
• Resize images so that width/height (whichever large) are same size
• Organise them into a grid - with several possible options:
  • Sorted by frequency
  • Scaled by frequency (so most shared is scaled to max square width and others are scaled down in proportion to frequency)

Optional:

• Setting to allow clicking/hovering over image shows larger version (particularly useful for ones scaled down by frequency)
• Setting to allow tinting those sorted by frequency (but not scaled) to indicate how much they are shared