Add active class for sidebar
Add active class for sidebar

For some reason, the sidebar requires a class="active"
and adding that fixes it.

itzg/minecraft-container-yard,moorkop/mccy-engine,moorkop/mccy-engine,itzg/minecraft-container-yard,moorkop/mccy-engine,moorkop/mccy-engine,itzg/minecraft-container-yard,itzg/minecraft-container-yard