Include time window parameters in the URL query string
Problem to solve
With #31368 (closed), users will be able to set arbitrary time windows when viewing their performance dashboards. However, their time window selections are not pushed to the state in the address bar, so if they copy the URL to the dashboard they're viewing and send it to another user, the time window will not go with it. This has the potential to cause confusion when users share dashboard links with one another.
We should include start/end times (or open ended time windows like "last 30 minutes") in the URL as query params.