Display Star and Fork on mobile, fix #18537.

## What does this MR do?

Displays the Star and Fork buttons on mobile devices.

## Are there points in the code the reviewer needs to double check?

Nope.

## Why was this MR needed?

I wanted to star and/or fork projects while on my phone, I couldn't do that before.

## What are the relevant issue numbers?

#18537 

## Screenshots (if relevant)

![Screen_Shot_2016-06-16_at_11.41.24_AM](/uploads/053ac0c1b39a7b1b30fffb0a8d43cffb/Screen_Shot_2016-06-16_at_11.41.24_AM.png)

cc: @jschatz1 

See merge request !4714