[stable19] Use lib instead if core as l10n module in OC_Files

[backportbot-nextcloud]

backport of #23722

[faily-bot]

🤖 beep boop beep 🤖

Here are the logs for the failed build:

Status of 34626: failure

acceptance-header

• tests/acceptance/features/header.feature:42

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  Scenario: just added users are seen in the contacts menu               # /drone/src/tests/acceptance/features/header.feature:42
    Given I am logged in as the admin                                    # LoginPageContext::iAmLoggedInAsTheAdmin()
    And I open the User settings                                         # SettingsMenuContext::iOpenTheUserSettings()
    And I click the New user button                                      # UsersSettingsContext::iClickTheNewUserButton()
      New user button in Users Settings could not be found (NoSuchElementException)
    And I see that the new user form is shown                            # UsersSettingsContext::iSeeThatTheNewUserFormIsShown()
    And I create user user1 with password 123456acb                      # UsersSettingsContext::iCreateUserWithPassword()
    And I see that the list of users contains the user user1             # UsersSettingsContext::iSeeThatTheListOfUsersContainsTheUser()
    When I open the Contacts menu                                        # ContactsMenuContext::iOpenTheContactsMenu()
    Then I see that the Contacts menu is shown                           # ContactsMenuContext::iSeeThatTheContactsMenuIsShown()
    And I see that the contact "user0" in the Contacts menu is shown     # ContactsMenuContext::iSeeThatTheContactInTheContactsMenuIsShown()
    And I see that the contact "user1" in the Contacts menu is shown     # ContactsMenuContext::iSeeThatTheContactInTheContactsMenuIsShown()
    And I see that the contact "admin" in the Contacts menu is not shown # ContactsMenuContext::iSeeThatTheContactInTheContactsMenuIsNotShown()