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 (closed)

Screenshots (if relevant)

cc: @jschatz1