Import - Improve phone validation (#12901)

Context : 
- Phones import is a bit complex if not all subfields are provided.
- Phones subfield validation are absent or different from BE validation.

Solution : 
- Normalize callingCode and countryCode validation (BE/FE)
- Ease phone import if only phoneNumber is provided

packages/twenty-server/src/engine/core-modules/record-transformer/utils/transform-phones-value.util.ts

@@ -2,13 +2,12 @@ import { t } from '@lingui/core/macro';
 import { isNonEmptyString } from '@sniptt/guards';
 import {
   CountryCallingCode,
-  CountryCode,
-  getCountries,
-  getCountryCallingCode,
   parsePhoneNumberWithError,
 } from 'libphonenumber-js';
 import {
+  getCountryCodesForCallingCode,
   isDefined,
+  isValidCountryCode,
   parseJson,
   removeUndefinedFields,
 } from 'twenty-shared/utils';
@@ -22,8 +21,6 @@ import {
   PhonesMetadata,
 } from 'src/engine/metadata-modules/field-metadata/composite-types/phones.composite-type';
 
-const ALL_COUNTRIES_CODE = getCountries();
-
 export type PhonesFieldGraphQLInput =
   | Partial<
       Omit<PhonesMetadata, 'additionalPhones'> & {
@@ -38,22 +35,6 @@ type AdditionalPhoneMetadataWithNumber = Partial<AdditionalPhoneMetadata> &
 
 const removePlusFromString = (str: string) => str.replace(/\+/g, '');
 
-const isValidCountryCode = (input: string): input is CountryCode => {
-  return ALL_COUNTRIES_CODE.includes(input as unknown as CountryCode);
-};
-
-const getCountryCodesForCallingCode = (callingCode: string) => {
-  const cleanCallingCode = callingCode.startsWith('+')
-    ? callingCode.slice(1)
-    : callingCode;
-
-  return ALL_COUNTRIES_CODE.filter((country) => {
-    const countryCallingCode = getCountryCallingCode(country);
-
-    return countryCallingCode === cleanCallingCode;
-  });
-};
-
 const validatePrimaryPhoneCountryCodeAndCallingCode = ({
   callingCode,
   countryCode,