admin/users: update username/name/email/admin status

crates/users/src/database.rs

@@ -270,4 +270,14 @@ impl User {
 
         Ok(())
     }
+
+    pub async fn set_admin_status(
+        &self,
+        conn: impl SqliteExecutor<'_>,
+        value: bool,
+    ) -> Result<(), Error> {
+        DatabaseUsers::set_admin_status(conn, self.id.as_ref(), value).await?;
+
+        Ok(())
+    }
 }