[CIAB] Hide split shipments feature for CIAB sites

[hichamboushaba]

Closes WOOMOB-1278

Description

This PR adds logic to hide split shipments feature for CIAB sites.

Steps to reproduce

1. Use a CIAB site (Check this for creating a demo site pdpAdu-29A-p2)
2. Install WooCommerce Shipping plugin, and connect it to WordPress.com (using the banner that appears after installing it)
3. Open the app, and open or create an order with multiple items.
4. Tap on Create shipping labels.
5. Check that the "Split shipment" button is hidden.
6. Open the order in wp-admin, then tap on "Create shipping labels", then split it to multiple shipments.
7. Re-open the order in the mobile app (you would need to go back to order details and refresh to fetch the new shipments list)
8. Check that the "pencil" button is hidden.

Testing information

• Confirm that split shipments feature is hidden for both orders with single shipments and multiple shipments.
• Good to test: confirm there is no impact for other sites.

The tests that have been performed

The above.

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.

[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	454a031
	Direct Download	woocommerce-wear-prototype-build-pr14631-454a031.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	454a031
	Direct Download	woocommerce-prototype-build-pr14631-454a031.apk

[codecov-commenter]

Codecov Report

❌ Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 38.49%. Comparing base (8e165c0) to head (454a031).

Files with missing lines	Patch %	Lines
...hippinglabels/WooShippingLabelCreationViewModel.kt	50.00%	0 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##              trunk   #14631   +/-   ##
=========================================
  Coverage     38.49%   38.49%           
  Complexity     9767     9767           
=========================================
  Files          2064     2064           
  Lines        115429   115433    +4     
  Branches      15370    15372    +2     
=========================================
+ Hits          44430    44437    +7     
+ Misses        66883    66876    -7     
- Partials       4116     4120    +4     

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[AdamGrzybkowski]

LGTM

Confirm that split shipments feature is hidden for both orders with single shipments and multiple shipments - ✅
Good to test: confirm there is no impact for other sites - ✅