Merge pull request #54969 from Expensify/cmartins-useBase26

[CP Staging] Update validateCode regex to allow base26 codes

(cherry picked from commit 8ee318d)

(CP triggered by luacmartins)

src/CONST.ts

@@ -1467,8 +1467,8 @@ const CONST = {
     // at least 8 characters, 1 capital letter, 1 lowercase number, 1 number
     PASSWORD_COMPLEXITY_REGEX_STRING: '^(?=.*[A-Z])(?=.*[0-9])(?=.*[a-z]).{8,}$',
 
-    // 6 numeric digits
-    VALIDATE_CODE_REGEX_STRING: /^\d{6}$/,
+    // We allow either 6 digits for validated users or 9-character base26 for unvalidated users
+    VALIDATE_CODE_REGEX_STRING: /^\d{6}$|^[A-Z]{9}$/,
 
     // 8 alphanumeric characters
     RECOVERY_CODE_REGEX_STRING: /^[a-zA-Z0-9]{8}$/,