Job Lines clear "To be invoiced" flag

Each job line includes a To Be Invoiced indicator, displayed as a thumbs-up icon in the To Inv column.
A highlighted thumbs-up icon indicates that the line is selected and will be included in the next invoice.

To clear all To Be Invoiced flags, use the Clear All Lines To Invoice button after completing the invoice for the job.

This will remove the thumbs-up icon from all job lines and reset them for future invoicing.