Clean up nameing of "store" in database, tests
For the "store" are many names ("store", "company", "betrieb") used in the code base. This naming should be reduced to the glossary used english names, this makes it easier to maintain.
For the "store" are many names ("store", "company", "betrieb") used in the code base. This naming should be reduced to the glossary used english names, this makes it easier to maintain.