Show all items for a given material

[flange-ipb]

What we already have:

• Search on the item overview page can filter for the material name.

What should be done:

• Material overview page: Add a button in the results table to show all items for the given material -> redirect to the item overview page and fill in the correct filter. Problems: Material name might be an incorrect filter, because names are not unique. Should there be a filter for material id?
• Material edit page: Add a button with the same functionality. Problems: Unsaved data is lost.