fix(draft-order): Update copy phone number (#14044)

## Summary

**What** — What changes are introduced in this PR?

Copying the phone number would previously copy the email. Implements a fix to instead copy the expected phone number.

**Why** — Why are these changes relevant or necessary?  

Implement the expected functionality

**How** — How have these changes been implemented?

Update the content of the `<Copy ... />` component.

**Testing** — How have these changes been tested, or how can the reviewer test the feature?

Manual testing was performed 
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## Checklist

Please ensure the following before requesting a review:

- [ ] I have added a **changeset** for this PR
    - Every non-breaking change should be marked as a **patch**
    - To add a changeset, run `yarn changeset` and follow the prompts
- [ ] The changes are covered by relevant **tests**
- [ ] I have verified the code works as intended locally
- [ ] I have linked the related issue(s) if applicable

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## Additional Context

CLOSES CORE-1282

packages/plugins/draft-order/src/admin/components/draft-orders/customer-section.tsx

@@ -134,7 +134,7 @@ const Contact = ({ order }: CustomerSectionProps) => {
             </Text>
 
             <div className="flex justify-end">
-              <Copy content={email} className="text-ui-fg-muted" />
+              <Copy content={phone} className="text-ui-fg-muted" />
             </div>
           </div>
         )}