Add a "Proposed" flag on https://datatracker.ietf.org/meeting/agenda for WGs that haven't completed chartering

[cindymorgan]

Description

Please add a "Proposed" flag on https://datatracker.ietf.org/meeting/agenda for WGs in the state "Proposed." (Similar to the "BOF" flag for groups in the state "BOF.")

Thank you!

Code of Conduct

• [X] I agree to follow the IETF's Code of Conduct