Fix: Added missing R, moved the "Confirm crossing manager setting" message string to i18nMessages

GCP-10339

Reviewer: Aldrin Batac
Cleanup: Removed most sonarqube violations

GCP-10339

Reviewer: Aldrin Batac
Cleanup: Optimized import, arranged fields according to standards, whitespace improvements

GCP-10339

Reviewer: Aldrin Batac