Browse through pictures in a room with arrow keys when viewing enlarged version

[Snamhdaen]

What would you like to do?

I would like to browse through pictures in a room by tapping the arrow keys/clicking on an arrow symbol when I view them in enlarged form. Currently, I have to close the enlarged view, scroll up/down to the next picture and click on it. This is cumbersome when examining/comparing related pictures.

How would you like to achieve it?

I think the ability to skip through the pictures uploaded to a room should be added via both keyboard and mouse input.

Additional context

The feature I have in mind is nicely implemented in the android app. I'd like something similar for the web/desktop version. I was unable to find issues discussing this on github but please feel free to correct me.

[aaronraimist]

Duplicate of #337