Added intelligent tab switching for your profile

If you are an instructor not doing live classes/taking a break from it and only using our on-demand or program components, often times when someone visits the profile, it seems empty as the first tab is "Classes" which says "No classes to show". 

We do have ways to rectify this by adding ?tab=video or ?tab=programs to the end of your profile url when sharing it (more details here). However, this may still not be ideal. So, we have now added intelligent tab switching on your profile. 

For example, if you don't have any upcoming live classes but only have on-demand videos, the active tab on your profile will automatically switch to "On-Demand". If you don't have uploaded videos but only replays, the tab will switch to "Replay" under On-Demand. And same for programs. The priority order will be Classes -> Programs -> On-Demand -> Replay.

If you have any questions or feedback about this, please let us know at hello@vstudio.live.