Show active players on game page

[Jamiras]

As a player, I'm interested in how other players are progressing in specific games. I'd like something on each game page similar to the "Active Players" widget on the main page, but filtered for the current game.

This could be interesting to watch for featured games: AOTW, seasonal events, new releases.

There might even be community building benefits - looking at a game you have interest in and seeing other players who are already playing would give you ideas for people to ask for help, or even to friend.

[Jamiras]

This was implemented in #859 and can be closed.