Share a voicegram with a link

A share link can be revoked later, and on Pro and above it can be password protected, with the password generated for you and shown once when you create it. Anyone opening a share link gets the full view with the summary, the urgency, and the transcript. The listen links sent in notification emails are the ones that adapt to who opens them: the person who left the message sees a short confirmation with a player, while a recipient gets the full view. Play counts are tracked either way.