Changes to List available expenses

the response property data/expenses/items/invoicePosition/items/gtu became nullable for the status 200

added the non-success response with the status 401

added the optional property data/expenses/items/basicInformation/isDeleted to the response with the 200 status

added the optional property data/expenses/items/basicInformation/language to the response with the 200 status

added the optional property data/expenses/items/additionalParties to the response with the 200 status

added the optional property data/expenses/items/vatExemptionReason to the response with the 200 status

added the optional property data/expenses/items/vatExemptionReasonDetailed to the response with the 200 status

added the optional property data/expenses/items/ksef to the response with the 200 status

added the optional property data/expenses/items/offlineMode to the response with the 200 status

added the optional property data/expenses/items/offlineModeReason to the response with the 200 status

endpoint added

api path removed without deprecation