[Issue][MazPhoneNumberInput] Mobile support

[Vladislav Kolotvin]

1. In the last version of component there isn't search input for country name. This causes inability to search for country on mobile phone.
2. Example phrase isn't scaled on narrow screen.
3. Country code input takes up too much space.

[Mazel]

Hi @vladkolotvin,

I improved the mobile UI of <MazPhoneNumberInput /> in the v3.0.0-next.25

Lets me know if it's okay for you !?

Thanks