Release v1.0.7

Update Tasks Manager to version 1.0.7

- Added Flatpickr CSS for date selection in the task model.
- Updated composer dependencies for sebastian/lines-of-code and sebastian/cli-parser to version 1.0.7.
- Changed version number in manifest.json to 1.0.7.
- Enqueued Flatpickr scripts and styles in the public class.
- Modified task date input to use a text field for Flatpickr integration.
- Adjusted archive and future tasks UI to include scheduled task visibility.
- Updated task item display to conditionally show scheduled dates.
- Set scheduled task visibility to false in today's tasks.
- Updated plugin version in main file and defined TASKS_VERSION as 1.0.7.