Add a product comparison mode

[teolemon]

What

Add a product comparison mode that allows you to scan 2 or more products, and get a comparison in columns.

Why

• Feature parity with Android
• It's convenient for a quick side by side comparison

Part of

• #912

[markk628]

Hey can I try taking this off your hands?

[jordan-furr]

Hey can I try taking this off your hands?

Did you make any progress? Can I help on this?

[amberhandal]

Hi! Can I help with this?

[mevinson]

Hey, I see there hasn't been progress on this feature in a while. If you don't mind, I'm going to take a shot at this starting in a week or two