[Woo POS] [Cash & Receipts] Enable acceptCashForPointOfSale

[iamgabrielma]

Closes: #14832

Ideally let's merge #14919 and #14935 first, but it's not a blocker.

Description

Sets acceptCashForPointOfSale to true, enabling cash in POS for release builds

Testing

• Run the app on Release build configuration
• Navigate to POS, proceed to add items to cart and checkout.
• Observe the "Cash Payment" option is available and functional

---

• 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 all devices (phone/tablet) and no regressions are added.

[wpmobilebot]

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

	App Name	WooCommerce iOS
	Build Number	pr14884-6e3fb1b
	Version	21.4
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	6e3fb1b
	App Center Build	WooCommerce - Prototype Builds #12663

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

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 21.5. This milestone is due in less than 2 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

Generated by 🚫 Danger

[joshheald]

@iamgabrielma I noticed one thing the other day; the string for collecting payments mentions cash, even when the feature flag is off. It might not be the best use of time, but for best practice, it would be good to make sure we use the old string if we turn the flag off.

[iamgabrielma]

@iamgabrielma I noticed one thing the other day; the string for collecting payments mentions cash, even when the feature flag is off. It might not be the best use of time, but for best practice, it would be good to make sure we use the old string if we turn the flag off.

That's a very good point, sorry for that. It was done in the context of an unrelated issue (animations) as a low-priority thing found during testing, and I didn't think about the flag.

I've updated the logic in this same PR: a02f3bb and restored the old String as cardOnlyInstruction. Also confirmed Strings are different when the flag is on/off and nothing is off due localized string values conflicting.

[joshheald]

Looks good, thanks for fixing the string.