Gallery (multi column image focused) view mode

[jordan1776]

trafficstars

Is your feature request related to a problem? Please describe. Expanding on #23

One of the things I liked about Relay and Sync is they had view modes which made viewing image focused subreddits very easy. I feel Thunder should have the ability to do so as well.

Describe the solution you'd like Basically a view mode which is like the ones in the said apps. Settings to show context (or none whatsoever) would be good. Setting to hide text posts from view (Relay does this). Not sure if long press should preview image/video or show menu for interactions.

Describe alternatives you've considered None

Additional context

In seperate but related issues:

• Links out should have an image from the source instead of a grey square with a link icon.
• View modes should be selectable from any view (probably on the nav bar)

[CTalvio]

I'm going to grab this one. If someone else wants to work on this though, let me know, because I'll be keeping this one in my back pocket until I implement some way to switch view mode on the fly and maybe remember them per-community.