* don't use alphanumeric sender ID for not support country codes
* fix import
* rename file
* fix spelling mistakes
* add twilio phone number to .env file
* add SENDER_ID to env variable and create function to get sender id
* add NEXT_PUBLIC_SENDER_ID env variable
* remove not needed Cal fallback
* fix readme
* code clean up
* code clean up
Co-authored-by: CarinaWolli <wollencarina@gmail.com>
Carina Wollendorfer