Fixed intermittent Power BI errors, and sharper onboarding tour videos

Fixed an issue where Power BI dashboards on screens would intermittently error after a Power BI capacity pause. They now continue working correctly.

Improvements

  • Audio Output can now be set from Screen Settings for x86-based Screenly Players like Screenly Player Max, not just Raspberry Pi devices.
  • The onboarding tour on the dashboard now shows sharper, smoother tutorial videos instead of grainy GIFs.