Finishing deunprap

src/pages/sync.rs

@@ -139,8 +139,15 @@ impl NavigatedPage<SyncMessage> for SyncState {
             DisableSync => {
                 let mut state = self.state.lock();
                 state.sync_data.key = None;
-                delete_settings("SYNC_KEY".to_string(), &state.connection);
-                delete_settings("AUTO_WEB_FETCH".to_string(), &state.connection);
+                let save_result = || {
+                    delete_settings("SYNC_KEY".to_string(), &state.connection)?;
+                    delete_settings("AUTO_WEB_FETCH".to_string(), &state.connection)?;
+                    Ok::<(), NotificationData>(())
+                };
+
+                if let Err(error) = save_result() {
+                    return push_error_task!(error);
+                }
             }
             SwitchAutoSync => {
                 self.auto_fetch = !self.auto_fetch;