Analysis popover doesn't close on clicks between header and body

[mccalluc]

• Specific code commit: 2a3c825
• Version of the web browser and OS: ff macos + chrome
• Environment where the error occurred: test production

Steps to reproduce

Please list all the actions and the input data used:

1. Click on the gear to bring up the analyses popover
2. It appears
3. Click on the light grey below the header but above the round-rects
4. Still there

Expected behavior

• Should go away

See also: #1879: There, it's not opening when it should, but they are similar in that clicks in particular regions are not handled appropriately.