Inner Toc elements do not close when navigating by clicking items

[pwittrock]

Steps to reproduce:

• go to the k8s reference docs
• click on "Deployment v1beta1 apps"
  • click on "Write Operations"
• click on "Jobs v1 batch"
  • click on "Write Operations"
• click on "Deployment v1beta1 apps"
  • click on "Read Operations"

Expected: Deployment "Write Operations" closes when clicking on Deployment "Read Operations"
Actual: Both Deployment "Write Operations" and "Read Operations stay open"