Background
Currently if you're logged-in, but not a frequent app user, you can get a fairly empty highlights slide.
This task is to add logic to only show this slide when there is content for the user, that they have already seen
Requirements
- Only show the highlights slide if a user has 2 or more insights that are not 0 to display. If there are not 2 or more insights to display, do not show the slide at all.
- Insights shown on the highlights slide must have already been shown in a slide (Favorite day to read is showing up even if I haven't seen the slide).
