Updates to Demographics Display

- Gating on feature enabled for Open edX users
- If feature disabled and Insights URL is set, displaying message pointing users to Insights
fix click event for actual target
TNL-138
Merge pull request #5782 from edx/remove-analytics-demographics

Updates to Demographics Display
Merge pull request #5808 from edx/zub/bugfix/tnl-138-createunitthrowserror

fix click event for actual target