Enhancements and Bug Fixes

• Point out more clearly when starting into import mode
• Hide sign-out button in import mode
• Don't purge debug log statements from production release
• Handle non-existing range values after the car was offline

Dashboards

• Statistics: Show "Starting at" column and fix timezone issue (#1254 by DrMichael)
• Charge Level: Fix usable battery level alternating between usable battery level and regular battery level
• Bump Grafana to v7.4.1

Documentation

• Add TeslaMateApi to the list of projects using TeslaMate (#1350 by tobiasehlert)
• Update installation docks (#1287 by tobiasehlert)
• Update HomeAssistant documentation (#1321 by jschollenberger)