QR code has to be made after all other information is filled

[CheoR]

Title

QR code updates when box/item information is updated

Narrative

    As a: n app/developer
    I want: new QRcode generated every time the user updates box/item information since QR codes are made using that data as a payload.
    so that: QR codes does not have outdated information and app can recreate information from scanned/QR code image.

Acceptance criteria

    Given: user updates box/item information
    When: user saves the information
    Then: if the information was already assigned to a QR code, the QRcode will update to a new QR code, else app create a a new QR code.