Electronic signing and locking for chart notes

Add an option to electronically sign and lock chart notes (non-session notes). Unlike session progress notes, chart notes don't appear to have an option to be electronically signed and locked, which is different from most EHR platforms. Chart notes are used for important clinical documentation outside of sessions, including case closures, outreach attempts, and continuity-of-care documentation, and leaving them unsigned and editable is a concern, particularly for case closures, since records should be properly finalized and meet clinical, legal, and audit requirements if ever reviewed. Upheal's suggested workaround was to "download the note as a PDF and save it in your records", but the point of using Upheal as the EHR is for it to save notes and records. Requested as an optional feature for chart notes to ensure notes are in their completed form and secure.