🪄 Enhancement - Donot update phone number prefix from text box

[rpatidar]

Summary

Its a bit annoying when the phone number changes triggers the country code changes.

can the country selection be edited only via the drop-down and not via the text box ? this will reduce down the mistakes people can make choosing a wrong country codes because of typos.

its similar to: https://boyuai.github.io/antd-country-phone-input/demos/basic-usage