steam: Grant promo item on a queue.
Disable the F2P shenanigans for now.
WIP Steam grants.
Count item grants in graphite.
Check modhash for authentication POST.
Band-aid for requests API change.

So we don't have to worry about which version is installed.
Tweak item grant response format handling.
Move styles into stylesheet file. Styling tweaks.
Add empty alt attribute.
Add error message if intermediate auth step fails.
Super simple trophy giving script.