Delete website Data for a Specified Period

Objective Add the ability to delete data for a specified period for Umami users. Context This feature aims to improve performance management by allowing the deletion of data within specific date ranges. This helps to maintain a lighter and more performant database. Additionally, an import/export feature will be ideal for archiving complete periods before deletion. Implementation Details 1. Database Addition of cascading delete functionality to ensure that all data related to a specific period is correctly removed. Update of database schemas and necessary migration scripts. 2. API Create a new API endpoint that takes two parameters: startDate and endDate. Implement the logic for deleting data (event_data) within this date range. 3. Frontend Add a user interface to select a date range and initiate the deletion of the corresponding data. Display appropriate confirmations and alerts to prevent accidental deletions. 5. Screenshot <img width="1506&qu…