Fetch translations from Transifex

<resources xmlns:tools="http://schemas.android.com/tools">

  <!--common strings-->

  <string name="app_name">DAVx⁵</string>

  <string name="account_invalid">Konto findes ikke mere</string>

  <string name="account_invalid">Konto findes ikke (længere)</string>

  <string name="account_title_address_book">DAVx⁵ adressebog</string>

  <string name="address_books_authority_title">Adressebøger</string>

  <string name="field_required">Feltet er påkrævet</string>