Merge remote-tracking branch 'acheetham/FLUID-4323-demo' into demo

* acheetham/FLUID-4323-demo:
  FLUID-4323: Files for new demo, including UIO integration. This is not cleaned up yet.
FLUID-4323: Added new setting panels and actions components for simplified content as well as adding a new settings panels component for self voicing.
Merge branch 'FLUID-4323' into demo

* FLUID-4323:
  FLUID-4323: Added new setting panels and actions components for simplified content as well as adding a new settings panels component for self voicing.
FLUID-4323: CSS fixes to make page responsive to UIO text size and line spacing adjustments; add TOC container.
Merge branch 'FLUID-4323' into FLUID-4323-demo