[Shipping Labels Revamp] Handle Package selection on the main form

[ThomazFB]

Summary

Fix issue #12747 by introducing the complete handling of the Package selection into the main Shipping Labels form.

Screen Capture

Screen_recording_20241212_184222.mp4

How to Test

Scenario 1 - Carrier Package

1. Go to the Order Details of an Order eligible for Shipping Label Creation
2. Hit the Create Shipping Labels button
3. Once inside the new Shipping Labels form, hit the Select a Package button
4. Select a Carrier Package and hit the Add Package Button
5. Verify that the Shipping Label form is presented back, with the Carrier package displayed properly
6. Verify that the subtitle of the Package contains the Carrier Category of that given package
7. Verify that the edit button re-enters the Package selection UI

Scenario 2 - Saved Package

1. Go to the Order Details of an Order eligible for Shipping Label Creation
2. Hit the Create Shipping Labels button
3. Once inside the new Shipping Labels form, hit the Select a Package button
4. Select a Saved Package and hit the Add Package Button
5. Verify that the Shipping Label form is presented back, with the Saved package displayed properly
6. Verify that the subtitle of the Package contains the Package type (Box or Envelope)
7. Verify that the edit button re-enters the Package selection UI

Scenario 3 - Custom Package not saved as a template

1. Go to the Order Details of an Order eligible for Shipping Label Creation
2. Hit the Create Shipping Labels button
3. Once inside the new Shipping Labels form, hit the Select a Package button
4. Fill the Custom Package form, DO NOT select the save as template check and hit the Add Package Button
5. Verify that the Shipping Label form is presented back, with the Custom package displayed properly
6. Verify that the Package subtitle contains the Package type (Box or Envelope)
7. Verify that the Package title is named as Custom Package
8. Verify that the edit button re-enters the Package selection UI

Scenario 4 - Custom Package saved as a template

1. Go to the Order Details of an Order eligible for Shipping Label Creation
2. Hit the Create Shipping Labels button
3. Once inside the new Shipping Labels form, hit the Select a Package button
4. Fill the Custom Package form, SELECT the save as template check
5. Add the package weight and name and hit the Add Package Button
6. Verify that the Shipping Label form is presented back, with the Custom package displayed properly
7. Verify that the Package subtitle contains the Package type (Box or Envelope)
8. Verify that the Package title is named as the given name in the Custom package form
9. Verify that the edit button re-enters the Package selection UI

Update release notes:

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

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on big (tablet) and small (phone) in case of UI changes, and no regressions are added.

[dangermattic]

	1 Warning
⚠️	This PR is larger than 300 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce-Wear Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	5aff9b3
	Direct Download	woocommerce-wear-prototype-build-pr13111-5aff9b3.apk

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	5aff9b3
	Direct Download	woocommerce-prototype-build-pr13111-5aff9b3.apk

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.07843% with 2 lines in your changes missing coverage. Please review.

Project coverage is 40.36%. Comparing base (a58e05d) to head (5aff9b3).
Report is 39 commits behind head on trunk.

Files with missing lines	Patch %	Lines
...ckages/datasource/WooShippingLabelPackageMapper.kt	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##              trunk   #13111      +/-   ##
============================================
+ Coverage     40.34%   40.36%   +0.02%     
- Complexity     6204     6206       +2     
============================================
  Files          1296     1296              
  Lines         74932    74961      +29     
  Branches      10272    10275       +3     
============================================
+ Hits          30233    30261      +28     
- Misses        42061    42062       +1     
  Partials       2638     2638              

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[atorresveiga]

np: We should use the material pencil here

[ThomazFB]

Oh, that's true! Thanks for the suggestion, it's fixed in 5aff9b3

[atorresveiga]

LGTM!

Nice work @ThomazFB! Everything is working as described. I left a small observation about the pencil icon, but is not a blocker for this PR