docs: private void saveLocalization() {
  
          SortedProperties localization = new SortedProperties();
          for (Object itemId : m_container.getItemIds()) {
              Item item = m_container.getItem(itemId);
              String key = item.getItemProperty(TableProperty.KEY).getValue().toString();
              String value = item.getItemProperty(TableProperty.TRANSLATION).getValue().toString();
              if (!(key.isEmpty() || value.isEmpty())) {
                  localization.put(key, value);
              }
          }
          m_keyset.updateKeySet(m_localizations.get(m_locale).keySet(), localization.keySet());
          m_localizations.put(m_locale, localization);
  
      }