User Presence for MS Teams Web Client

Ensure you appear "Available" when using the web based version of Teams, based on your system idle status. The default MS Teams Web Client behaviour is to mark you "Away" if you aren't active in that application / tab, even if you are still working elsewhere on your computer. This extension will use your system idle status, and if you are active, it'll periodically prompt the Teams application / tab to keep you appearing "Available" or active.