Need feedback on forum redesign

[Ahmet Sait]

Hi,
So I was thinking about fixing the mobile design of the forum 
(web front-end of the mailing lists, aka 
[DFeed](https://github.com/CyberShadow/DFeed)) for a while and I 
finally got around to laying out something tangible:
[Fix #79 - Redesign forum group index to be mobile 
friendly](https://github.com/CyberShadow/DFeed/pull/130)

Main motivation is to turn this:
![old](https://wfr.moe/f6psaH.png)

Into something like this:
![new](https://user-images.githubusercontent.com/8372246/125770656-b7810a67-1b74-402b-ae90-4d473f27bbb5.png)

I'm looking forward to feedback about what you like / don't like 
as well as any suggestions on how to improve the design. Please 
use this thread unless it's directly related to the PR code.

Thanks!