Set charging time not SOC

🚧 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/set-charging-time-not-soc/
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In preferences allow users to set the amount of time they want to spend at any one charger.

Ex "exactly X minutes" or "X minutes or less". 20 minutes is enough time to go to the bathroom, buy a snack, and eat the snack.