PV/09_Delete_Button

[MisterGhillie]

Basic feature description:

• Users can now add and delete items from their pantry

Branch for testing:

• PV/09_Delete_Button

Risk factors (what modules or other features could be broken/affected by this fix):

• Pantry UI
• Pantries collection in DB

Recommendations for Testing:

• Test edge cases for the add item form
  • Item Name should only allow input of chars, spaces, and apostrophes
  • Quantity should only allow input of numbers (ints)
• Make sure nothing's funky trying to delete items (not entirely sure what edge cases could exist)

Recommendations for Code Review:

• Only code changes were for the pantry view, nothing else should be affected
• A new widget file was added (new_pantry_item.dart)

Descriptions of unit-tests ran by developers before submitting the ticket:

• No unit-tests, just manual inputs for the form and verifying the data was added to food and pantries collections
• Also manually verifying items were deleted from a user's pantry but not the food collection