Upgrade Flutter to 3.19.6 and package upgrades (especially Mapbox 2.0.0)

[PaulPickhardt]

If available, link to the ticket

Closes: #542

I could only upgrade to Flutter 3.19.6 due to a bug regarding UniqueKey. The toString() method behaves differently in release mode. We habe to wait for the hotfix.

With Flutter 3.22.0 the colorScheme attributes background, onBackground and surfaceVariantget deprecated. I already refactored this when testing the 3.22.1 version. I think we should apply this change already.

Our color mapping was not consistent anyway. Primary and surface were the same. The migration for background suggests moving it to surface.

That is the color mapping I applied:
surface = value of background
onSurface = value of onBackground

The use in the code needed to change:
surface => primary
onSurface => onPrimary
background => surface
onBackground => onSurface

When we upgrade to flutter 3.22.x, the only thing we need to change is: renaming surfaceVariant tosurfaceContainer.

QA Checklist

Author

• Code Review
• Functionality Tested (iOS and Android + different screens)
• Light/Dark Mode Tested
• Performance/Energy Consumption Tested (especially in ride view)

Reviewer

• Code Review
• Functionality Tested (iOS and Android + different screens)
• Light/Dark Mode Tested
• Performance/Energy Consumption Tested (especially in ride view)

[adeveloper-wq]

There is now a white bar at the bottom of the display. This shouldn't be there.

[adeveloper-wq]

In general everything works great. Tested it on my iPhone and the old Moto-Android. Just found one typo and the layout glitch in the routing view.