refactor: add title as backup in product admin breadcrumb

[kieckhafer]

Impact: minor
Type: refactor

Issue

When an option doesn't have the optionTitle field set, we default to a hardcodeded Untitled variant to display in our breadcrumbs. We should first also check to see it title is set and use that prior to the Untitled variant.

Solution

Add a check to see if title is available.

Breaking changes

None

Testing

1. Create a product
2. Leave Option Title blank (if this is even possible, it might be required in our UI. If so, use Robo3T to change the option field after it's been created).
3. Fill in "Title" field
4. See that the title field shows up in the breadcrumbs

Before:

After:

[mikemurray]

👍 LGTM