Make the URL change when navigating weeks
When the user clicks to navigate to different weeks, change the URL in the address bar.
This lets me send a ink to meeting prospects with the week in question preset.
It's especially hard when sending an email on a thursday, hoping to schedule for next week, as people don't notice the nav flipper and pick a slot from this week.
And please fix the header so that the dates are actually correct when viewing a week OTHER THAN this week...;