talkers (#8158)

Release Notes:

- Added an "Unmute" action for guests in calls. This lets them use the
mic, but not edit projects.

crates/collab/src/db/queries/projects.rs

@@ -51,7 +51,7 @@ impl Database {
             if !participant
                 .role
                 .unwrap_or(ChannelRole::Member)
-                .can_publish_to_rooms()
+                .can_edit_projects()
             {
                 return Err(anyhow!("guests cannot share projects"))?;
             }