Introduce new modifyPetitionFile helper function for atomic CSV
operations
Refactor manual confirmation to use the new helper function
Add new manuallyDeleteSignatures function with confirmation flow
Update menu to include deletion option and adjust numbering
Add new menu option to manually confirm signatures by email address
Search through all petition files to find matching emails
Update status from pending to confirmed when found
Display results with confirmation status and petition IDs
Handle multiple emails via comma-separated input
Maintain proper file locking to prevent race conditions
Add functionality to mark entries as ignored for malformed emails and
other issues
Add ignore list file and management functions
Update menu to include ignore option
Implement interactive ignore marking for failed emails and unconfirmed
signatures
Add color-coded output for better visibility
Update function signatures to support ignore list filtering
