<!-- Thanks for filing an issue! Before hitting the button, please answer these questions. Describe *in detail* the feature/behavior/change you'd like to see. Be ready for followup questions, and please respond in a timely manner. If we think a feature already exists, we might close your issue. If we're wrong, PLEASE feel free to reopen it and explain why. --> Add pre-commit check to find and delete unused strings in strings.en.yaml file