Make the dashboard the index page
Make the dashboard the index page

https://seedscientific.atlassian.net/browse/POLIO-173

Show users the dashboard as the default page on login instead of going
straight to the data table. Dashboards are more likely to be valuable on a
daily basis.

- Change the URL for the dashboard to the root of the datapoint app
- Move the data table to the URL 'table/' in the datapoint app

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