It's being sunset in August, after being deprecated for 2 years.

Ref: https://firebase.google.com/support/dynamic-links-faq?utm_source=deprecation_msa&utm_medium=email&utm_campaign=pone

If the conference mapper return an error we show it on deeplinking page. In case the conf mapper receives non authenticated request it may return an error and this is normal so hide it from that page.

* Convert all vh units to dvh; fixing layout for mobile browsers such as Chrome for Android.

Remove unnecessary @ts-ignore
Fix some TS errors

- redesign deeplinking mobile page, desktop page and dial in number page
- now dial in number page is an entry point in app.bundle.