Add product: Show celebratory view when the first product is created

[itsmeichigo]

Part of #9785

Description

This PR adds a new view to celebrate when a product is created for the first time. This view contains a button to share the new product too. To make it more fun, the view also has confetti when first presented - this is handled by a new library.

The AddProductCoordinator was updated with a new param isFirstProduct, used to decide whether to show the celebratory view after a product is successfully created.

The coordinator is updated in two places to ensure that we celebrate the first product from store onboarding and the empty view of the Products tab.

Testing instructions

• Make sure that you have access to a store with the checklist for creating the first product not done yet.
• Tap the onboarding item to create the first product for the store and publish the product from the product form.
• After the product is published or saved as draft, you should see that a new view is presented to celebrate the new product. In Xcode console, notice Tracks event: first_created_product_shown.
• Tap "Share Product", a share sheet should be presented with the correct product URL. In Xcode console, notice Tracks event: first_created_product_share_tapped.
• Navigate to the Products tab and remove the newly created product. The empty view should then be displayed.
• Tap "Add Product" to create a new product. When the product is published or saved as draft, the celebratory screen should be presented again.

Screenshots

Simulator.Screen.Recording.-.iPhone.14.Pro.-.2023-05-22.at.16.43.26.mp4

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• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[wpmobilebot]

You can test the changes from this Pull Request by:

• Clicking here or scanning the QR code below to access App Center
• Then installing the build number pr9790-be7f1ea on your iPhone

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[selanthiraiyan]

This works as expected and the confetti looks nice. 🎉

I left a few non-blocking nits/questions.

🚢

[selanthiraiyan]

Super nit: IMO, "Cancel" might make it challenging to understand whether sharing will be cancelled by tapping this button. (After initiating share) WDYT about using "Close"?

[itsmeichigo]

Updated the button title to "Dismiss" in 022a58f 👍

[selanthiraiyan]

❓ Is it possible to pass onCompletion block to SharingHelper and dismiss this screen from it?

[itsmeichigo]

We don't get a callback when the user submitted any content in the share sheet, so it's not technically possible to handle onCompletion.

[selanthiraiyan]

Oh, OK. I thought we could use theonCompletion parameter. https://github.com/woocommerce/woocommerce-ios/blob/trunk/WooCommerce/Classes/Tools/SharingHelper.swift#L29

[peril-woocommerce]

	Messages
📖	This PR contains changes to Tracks-related logic. Please ensure the following are completed: PR Author The PR must be assigned the Tracks label PR Reviewer The tracks events must be validated in the Tracks system. Verify the internal tracks spreadsheet has also been updated.

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