[#464] introduce new phone number validation logic to account for special characters in R-L keyboards
- we had a mysterious and difficult-to-reproduce bug where certain phone numbers would fail our validation logic, creating a very frustrating user experience!
- we finally reproduced the bug, which turned out to come from special character encoding in R-L language keyboards!
closes #464 (closed) and an already closed, but valid! #426 (closed)
Edited by Mari