[Bug] Popup is disappearing while user clicks on "Cancel" button

[timothee-dhenain-zenika]

To reproduce:

• Go to https://ngx-pwa-install.web.app/
• Click on the "Install" purple button
• Click on "Cancel" from the browser popup
• Ngx-pwa-install popup disappears

IMO the usual flow would be:

• User clicks on the PWA popup -> triggers the browser popup -> user clicks on "Install" -> PWA popup disappears
• User clicks on the PWA popup -> triggers the browser popup -> user clicks on "Cancel" -> No effect

I don't know if that's a intended behavior, but it would be great to have a total control over the popup display Let me know if I'm missing something from the docs!