[WOOMOB-2286] Change POS bookings sort to oldest-to-newest

[malinajirka]

Fixes WOOMOB-2286

Description

Changed POS bookings list sorting from newest-to-oldest to oldest-to-newest. The POS and main Bookings tab share the same Room Bookings table. When they used different sort orders, cached data from one screen would briefly display in the wrong order when opening the other, causing a visible "jump" as the fresh fetch replaced it. Switching POS to oldest-to-newest aligns with the main Bookings tab and matches user expectations (start of day → end of day).

Test Steps

1. Open POS → Bookings — verify bookings are sorted from earliest to latest start time
2. Restart the app → open POS → Bookings — verify no visual content jump when fresh data loads
3. Compare the order with the main app Bookings tab — they should match

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

[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
	Build Number	727
	Version	24.1-rc-3
	Application ID	com.woocommerce.android.prealpha
	Commit	93788e9
	Installation URL	6qdslb289jtd0

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 39.29%. Comparing base (ab7c42b) to head (93788e9).
⚠️ Report is 26 commits behind head on trunk.

Additional details and impacted files

@@            Coverage Diff            @@
##              trunk   #15403   +/-   ##
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  Coverage     39.29%   39.29%           
  Complexity    10977    10977           
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  Files          2238     2238           
  Lines        127540   127540           
  Branches      17802    17802           
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  Hits          50113    50113           
  Misses        72318    72318           
  Partials       5109     5109           

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