[Woo POS] POS avalability check optimisation

[kidinov]

Closes: #12633

Description

Currently, there are two slow tasks we run to determine POS availability:

• Onboarding status check: takes ~3300ms or ~0 if cached. It should be cached for those who use IPP or POS regularly
• Payment account info check: takes ~1100ms - just slow back-end; we probably can not do anything on our side regarding this
  Those are run in sequential order, so in the worst-case scenario, it takes 4400ms to determine if POS is available.

The PR changes to run the heavy tasks in parallel, reducing the time in the case scenario to ~3300

Testing information

Open more -> Notice faster determination of the POS availability

The tests that have been performed

^

Images/gif

• 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	ef8b773
	Direct Download	woocommerce-wear-prototype-build-pr12759-ef8b773.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	ef8b773
	Direct Download	woocommerce-prototype-build-pr12759-ef8b773.apk

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.71429% with 2 lines in your changes missing coverage. Please review.

Project coverage is 40.86%. Comparing base (5a9dbdd) to head (ef8b773).
Report is 6 commits behind head on trunk.

Files with missing lines	Patch %	Lines
...m/woocommerce/android/ui/woopos/WooPosIsEnabled.kt	85.71%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##              trunk   #12759   +/-   ##
=========================================
  Coverage     40.86%   40.86%           
+ Complexity     5757     5751    -6     
=========================================
  Files          1236     1236           
  Lines         69722    69726    +4     
  Branches       9668     9669    +1     
=========================================
+ Hits          28490    28496    +6     
+ Misses        38604    38602    -2     
  Partials       2628     2628           

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[samiuelson]

LGTM Thanks for optimizing this, nice idea, and the difference is visible.