[BUGFIX] * Copy discount link should copy the code to the clipboard i…

[MaximilianoRicoTabo]

…nstead of open edit page

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• Have you followed the Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Resolves XXX.

How to test the changes in this Pull Request:

1. Click copy link in discount code.
2. Observe it doesn't open the edit page anymore.
3. Paste the clipboard content somewhere and compare with the code.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully run tests with your changes locally?

Changelog entry

Enter a summary of all changes on this Pull Request. This will appear in the changelog if accepted.

[kimcoleman]

This link isn’t broken as is. It doesn’t open the edit page. It duplicates the discount code as a new code with same settings.

Let’s discuss whether the word copy is misleading and duplicate is better.

[MaximilianoRicoTabo]

Should I close this one then @kimcoleman ?

[kimcoleman]

We can chat about this in a dev meeting. ‘click to copy’ would be nice some other places in the plugin.