Bookkeeping... #fulfilment

Updated the shipment page in #fulfilment

checked open issues #fulfilment and solved one

Improved the fulfilment monitor of shopify fulfilments. The problem is that a fulfilment order in Shopify can have many statusses and reques_statusses. Once accepted, it is hard to cancel a fulfilment order in the way shopify wants. Therefore I improved some checks, so less garbage comes in. #fulfilment