User gets warning when deleting boxes with linked items

[CheoR]

User should get some kind of warning when trying to delete boxes that have items linked to it.
User gets warning when deleting boxes with linked items

Title

User gets warning  when trying to delete move, QR code, Boxes with other information attached

Narrative

    As a: user
    I want: failsafe/confirmation before deleting instances with attached cascading information
    so that: user does not accidentally delete information

Acceptance criteria

  A description of each specific scenario of the narrative with the following structure:

    Given: the initial context at the beginning of the scenario, in one or more clauses;
    When: the event that triggers the scenario;
    Then: the expected outcome, in one or more clauses.