A few updates to the Map.

Restart Nearest Minute CPs are now shown on the map.

- Events are only shown if the share_timeslips value is set to true
- Only restart-type checkpoints are shown on the map

* When sorting by score, a secondary sort is now done on car number to avoid random re-ordering
* The total score is shown on the Timeslip detail view for a car
* Added a button that allows the map to reset the zoom to show all checkpoints
* Visual improvements for use with dark mode

* Score are displayed as whole or fractional values based on the event setting.
* The app version number is shown on the main Event list.
* The map no longer re-centers when car updates are received.