PWA: installieren mit eigenem Install-Flow

[jonaskuske]

Service Worker:
https://johannschopplich.com/en/blog/kirby-offline-first-service-worker

iOS PWA prompt:

• https://github.com/chrisdancee/react-ios-pwa-prompt

PWA prompt generell:

• https://www.npmjs.com/package/add-to-homescreen-control
• https://www.npmjs.com/package/install-prompt-banner