Support Quicksy sign up with Siskin IM

[pravi]

Is your feature request related to a problem? Please describe.

https://quicksy.im is a hack to provide same level of on boarding experience as centralized services like WhatsApp or Signal. Since it is a modified version of conversations android app, it supports only Android.

Describe the solution you'd like It'd be good if Siskin IM offers an option to sign up to Quicksy. Either directly or as a separate app.

Describe alternatives you've considered Current option of linking phone number and XMPP id is confusing for people.

Additional context

[licaon-kter]

This might need a whitelabeling of the app instead, like Snikket.

Basically a rebranding.