- Added `import_tasks_from_email` method in `Cron` class to handle task imports from email.
- Created `MailToTaskImporter` class for processing emails and creating tasks based on their content.
- Updated configuration to include IMAP settings for email import.
- Enhanced `Tasks` class with a method to change the client associated with a task.
- Modified task details view to include a dropdown for selecting clients.
- Improved task timer functionality with separate start and stop functions.
- Added logic to handle task work duration validation.
- Updated JavaScript to manage task timers and client changes more effectively.
