Creating shipping label: Purchase section

[atorresveiga]

Part of: #12281

Description

This PR includes the shipment label purchase section. Its changes are focused on UI, and the data used in the screens is mocked. I will connect this UI with real data in a different PR.

Testing information

1. Create an Order with the processing status on a store that can create shipping labels
2. Tap on Orders
3. Tap on the order created on step 1
4. Tap con create shipping labels
5. Check that Shipment details card is displayed at the bottom of the screen
6. Tap on/Drag up Shipment details
7. Check that the bottom sheets expand and the shipment label purchase section is visible

The tests that have been performed

1. Test that the UI section is visible

Images/gif

Before	After

• I have considered if this change warrants release notes and have added them to RELEASE-NOTES.txt if necessary. Use the "[Internal]" label for non-user-facing changes.

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.

[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	ff779fc
	Direct Download	woocommerce-wear-prototype-build-pr12819-ff779fc.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	ff779fc
	Direct Download	woocommerce-prototype-build-pr12819-ff779fc.apk

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 65 lines in your changes missing coverage. Please review.

Project coverage is 40.49%. Comparing base (eab1afe) to head (ff779fc).
Report is 6 commits behind head on trunk.

Files with missing lines	Patch %	Lines
...oid/ui/orders/wooshippinglabels/ShipmentDetails.kt	0.00%	65 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##              trunk   #12819      +/-   ##
============================================
- Coverage     40.52%   40.49%   -0.04%     
  Complexity     5773     5773              
============================================
  Files          1241     1241              
  Lines         70469    70522      +53     
  Branches       9823     9833      +10     
============================================
  Hits          28558    28558              
- Misses        39279    39332      +53     
  Partials       2632     2632              

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