Describe the bug
When 2 tabs open, one on the Dashboard the second on the Rocket Insights tab, adding a URL on the second tab sometimes won't auto-update the Global Score in the first tab.

To Reproduce
Steps to reproduce the behavior:

1. Using 3.20-alpha2, open 2 tabs: one on the WPR Dashboard and the other on the Rocket Insights tab.
2. While on the Rocket Insights tab, add a URL. > loading spinner is displayed.
3. Check the tab with the Dashboard.
4. Notice that the previous score is still showing, not the loading animation, and it will be like this until the user manually refreshes the page.

Expected behavior
Global Score should auto-update across tabs without the need for a manual refresh.

Screenshots