Moving the scooterService to a provider pattern

[TheFreal]

Rather than passing the scooter service to every single page, this makes it available across the widget tree.

QA checklist

• Read state (state & power state)
• Read primary battery SOC
• Read primary battery cycles
• Read secondary battery SOC
• Read secondary battery cycles
• Read seat closed
• Read handlebar
• Read AUX SOC
• Read CBB SOC
• Read CBB charging state
• Update ping
• SOCs are cached (after app restart)
• Commands can be sent (locking & hibernation)