Bump version to 0.1.176 - Add offline support to kiosk mode. To use this, install the app as PWA. The app must connect to the internet at least once every month. - Make kiosk user/product search more reliable, fall back to searching cached users/products on error - Queue kiosk purchases if there is no connection, synchronize when connecting again - Shorten kiosk buy button text to prevent overflowing when buying for multiple users - Add kiosk specific service worker to handle offline mode and caching - Fix precache/prefetch configuration of main service worker - Fix rare error when buying products in kiosk mode