User can delete ingredients

[Josh-Webb]

Given user is viewing their ingredient category list
When the user clicks on a delete button next to an ingredient
Then the user will be brought to a separate page asking for confirmation to deleting the ingredient
When user interacts with cancel
Then user will be brought back to the previous page
When user interacts with confirm
Then the ingredient will be removed from the "stocked" ingredients
Then the user will be brought back to pantry page.