Remove and add offer groups in mixes 34, 35/41, 40 (RTC-23609)

Offer group identifier within offer is unique, so offers are updated in POS properly after one of offer groups is deleted and new one is added (new offer group has new identifier instead of using identifier of removed group).

Swedish translations (RTC-23832)

Swedish translations of mix types names and descriptions are updated.

Removed offers and items (RTC-22211)

Item search and item sales grid works for deleted offers. Items removed from the offer when promotion was active are also displayed in item search and item sales grid.