New PWA install interface on Android

[Falco]

@Victor_Berridge

The idea of disabling the PWA, was not to remove, but more when we have more time see how we can integrate the PWA, compatible with our thoughts, not as a popup perhaps a link to for those wanting to try…

There is no pop-up.

The install prompt for PWA install in Discourse that happens in Android is a link in a top banner that only happens for users with enough engagement.

Encourage members to install WebApp

We already have a PWA install promotion banner built-in. It is triggered after a logged in user hits Trust Level 1, and shows a banner at the top promoting the install. [Screenshot_20200107-173403]

The new screenshots mentioned above only show after the user clicks on the prompt we have used for years.