Improve error handling on New Item

[cielf]

Summary

If you are entering a new item, and you use the name of an existing item, the message should be helpful.

Why Fix

Reduce bank confusion, support time.

Details

This happened when a bank tried to enter a new item and used the name of an inactive item.
All they got was a "Something Didn't Quite Work Right - Try Again?" message.
In this case, the error messages should include "An Item with that name already exists (could be an inactive item). "

Criteria for Completion

• If you try to enter an item with the same name as an existing item, you receive the more helpful message
• tests to demonstrate this behaviour

[Gabe-Torres]

Would love to take this one

[dorner]

Give it a shot!

[github-actions]

This issue is marked as stale due to no activity within 30 days. If no further activity is detected within 7 days, it will be unassigned.

[Gabe-Torres]

Hey @cielf and @dorner! I created a new pr for this issue and closed the previous one.

[github-actions]

Automatically unassigned after 7 days of inactivity.

[cielf]

PR is under review. Keeping the assignment.