feat: Pass sender through admin commands

src/admin/user/commands.rs

@@ -241,7 +241,7 @@ pub(super) async fn suspend(&self, user_id: String) -> Result {
 	// TODO: Record the actual user that sent the suspension where possible
 	self.services
 		.users
-		.suspend_account(&user_id, self.services.globals.server_user.as_ref())
+		.suspend_account(&user_id, self.sender_or_service_user())
 		.await;
 
 	self.write_str(&format!("User {user_id} has been suspended."))