carp_background_location and mobility_features

[Panosfunk]

mobility_features (CARP) is using carp_background_location which in turn is using background_locator_2 (which is not maintained by us). background_locator_2 is preventing me from upgrading to gradle >= 8.0 bc it has no namespace defined in its app/build.gradle.

This PR on the original repo seems to be fixing that issue. I linked the dependency to this repo & fix-branch instead of the pub.dev official package but I seem to be getting another weird error inside my carp_background_location/lib/main.dart line 17, 18, 36, even though this class still exists in the PR for the fix that Yukams made.

Undefined class 'LocationDto'.
Try changing the name to the name of an existing class, or creating a class with the name 'LocationDto'.