feat: Allow to include translations for extended profile fields

[johanseto]

Description

Pr migration.
(cherry picked from commit 5d03359)

Testing instructions

Install eox-nelp and some other packages need it like.

pip install edx-event-routing-backends
pip install git+https://github.com/eduNEXT/eox-nelp.git

Add the middleware of eox-nelp.

MIDDLEWARE += [
    "eox_nelp.middleware.ExtendedProfileFieldsMiddleware",
]

Abd in tenant config the following.

    "REGISTRATION_EXTRA_FIELDS": {
        "city": "hidden",
        "confirm_email": "hidden",
        "country": "optional",
        "first_name": "required",
        "gender": "optional",
        "goals": "optional",
        "hobby": "optional",
        "honor_code": "required",
        "last_name": "required",
        "level_of_education": "optional",
        "mailing_address": "hidden",
        "movie": "optional",
        "sport": "optional",
        "terms_of_service": "hidden",
        "year_of_birth": "optional"
    },
    "extended_profile_fields": [
        "hobby",
        "sport",
        "movie"
    ],
    "extended_profile_fields_translations": {
        "ar": {
            "hobby": "\u0647\u0648\u0627\u064a\u0629",
            "movie": "\u0641\u064a\u0644\u0645",
            "sport": "\u0631\u064a\u0627\u0636\u0629"
        }
    }

Check translation works in account settings view changing the language.

Before

After

Extra information

This need eox-nelp, to use the middleware of extended profile fields. For account settings view, the middleware is working but the register modal is not showing the custom fields using the extended_profile_fields.

[johanseto]

Tested after test fix and still working.

[andrey-canon]

The middleware is not required since this is specific for account settings, anyway worked as expected

[johanseto]

Working in palm alpha.