This commit introduces the ability to clear quiz results and delete quizzes directly from the backoffice. It includes new routes, controllers, modals for user confirmation, and updates to translations. The `QuizRepository` now supports dedicated methods for clearing results and deleting quizzes along with error handling. Related database migrations and front-end adjustments are also included.
This commit switches translations from YAML to XLIFF format for better standardization, updates the elimination preparation process with UI and functionality improvements, tweaks form structures, adjusts compose.override.yaml for improved asset handling, and optimizes back office usability with refined translation handling.
Marijn
