When clicking on the "Supplier" button as described in #177, show a dropdown where the user can select the supplier they want to order from. When the user clicks on submit, show a spinner while all the budget items referencing a specific supplier are being added to the order.
When clicking on the "Supplier" button as described in #177, show a dropdown where the user can select the supplier they want to order from. When the user clicks on submit, show a spinner while all the budget items referencing a specific supplier are being added to the order.