Fp 9 refactor api calls

[FranciscoPerez]

Changes

1. Create redux state, actions, thunks and reducer function for order logic.
2. Update fetch calls to axios calls.

Branched from issue #8 (fp-8-add-edit-delete)

Purpose

API calls are scattered across several components that have other concerns. This can make troubleshooting difficult.

Issue #9

Approach

Convert fetch api calls into axios calls.

Move API calls and orders array into its own redux state and actions.

Implement order redux into each component that referenced the orders array or corresponding API calls.

Testing Steps

Navigate to /view-orders/ page.

Delete Test

1. Click the Delete button.
2. Verify the deleted order was removed.

Edit and Confirm Test

1. Click the Edit button.
2. Verify item description and quantity fields convert to select input fields.
3. Verify button choices now display Confirm and Cancel.
4. Change the item description and quantity values.
5. Click the Confirm button and verify changes were saved.

Edit and Cancel Test

1. Click the Edit button.
2. Verify item description and quantity fields convert to select input fields.
3. Verify button choices now display Confirm and Cancel.
4. Change the item description and quantity values.
5. Click the Cancel button.
6. Verify item description and quantity remain unchanged.

Learning

Reviewed the existing auth redux implementation and followed a similar design pattern.

Closes #9