Charts 5.x compatibility: charts_field_formatter dependency on deprecated service charts.settings

It appears that when we fix this initial issue we also see more issues:

Which is already reported here: 🐛 Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException with charts 5.x Needs work .

Long story short, this module is basically not compatible with the 5.x branch of charts, and should probably have a hard dependency added to ^3.x

Dependency to 3.x has been added. Thank you!