Fix quality level bugs

[andybak]

1. The default (Unity) quality level "High Performance Desktop" had a weird shadow artifact. It as especially visible in the Dress Form environment and appeared as a line on the ground where shadowing suddenly started/stopped. Increasing the shadow cascade setting by one notch seemed to fix it (two cascades instead of no cascades)
2. The second (Open Brush) quality setting (so level 1 or 2 depending if you count from zero) was glitching out to all white. It seemed to happen when HDR was off but FXAA was on? I turned HDR on for this quality level and it seems to resolve it.

In both cases the I decided to solve the issue by trading for a hopefully small decrease in performance as I figured average user hardware has increased over time.