Show speed limit when driving without route

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/show-speed-limit-when-driving-without-route/
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It is helpful to have the speed limit and current speed displayed on the map when driving around without a route