Add "View Progress" Link for "Update" Page After Importing Products from Square

[faisal-alvi]

All Submissions:

• Does your code follow the WooCommerce Sniffs variant of WordPress coding standards?
• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?
• Will this change require new documentation or changes to existing documentation?

---

Changes proposed in this Pull Request:

• Adds a "View Progress" link after triggering a product import from Square, allowing users to easily navigate to the Update page and monitor import progress.

• The link is only shown on the settings page, not during the onboarding flow, for a better user experience.

Closes https://linear.app/a8c/issue/SQUARE-97/add-view-progress-button-link-to-the-update-page-after-importing.
Closes #174.

Steps to test the changes in this Pull Request:

1. Go to WooCommerce > Settings > Square > Sync Settings.
2. Trigger a product import from Square.
3. After the import is triggered, confirm that a "View Progress" link appears below the import notice.
4. Click the "View Progress" link and verify it takes you to the Update page, where you can monitor the import progress.
5. Go through the onboarding flow and confirm that the "View Progress" link does not appear after importing products.

Changelog entry

Add - A "View Progress" Link for "Update" Page After Importing Products from Square