[Woo POS] Don't ignore safe area at the root of POS modal

[staskus]

Ignoring a safe area at the root of the POS modal removes the safe area for the whole POS

Description

As a regression after #16104, POS headers and the floating button appeared too close to the edges due to the removal of the safe area at the root of the POS modal code.

For now, I just removed this ignore, which will make the modal window only expand up until the top and bottom safe areas. I spent some time trying to find the solution, but it looks like just setting .cornerRadius is enough to trigger safe area. Putting cornerRadius on the background worked on card-present payment modals, but broke other modals in the process.

Here are various fixes that I tried if interested:

modal.attempts.mov

Steps to reproduce

The payment modals should behave as in #16104, but don't grow past the top and bottom of safe area.

Payment modals:

1. Open POS on an iPad 26.0 device or simulator
2. Start card reader connection
3. Change window sizes
4. Confirm the modal view adapts to different view widths and heights, and can be scrolled when needed

Regression:

1. Try opening barcode scanning or product restriction modals and confirm they continue to work

Testing information

• Tested on iPad Air 26 simulator
• Added previews to facilitate development and testing

Screenshots

Simulator.Screen.Recording.-.iPad.Air.13-inch.M3.-.2025-09-11.at.20.09.10.mov

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

[wpmobilebot]

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

	App Name	WooCommerce iOS Prototype
	Build Number	pr16121-313c367
	Version	23.2
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	313c367
	Installation URL	28chvve06844o

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

[jaclync]

Hi @staskus, could you share the testing steps? Like if the focus is on iOS 26 window resizing as in the screencast, and what to look out for. Is this fix for the regression you mentioned in p1757590716100649-slack-C070SJRA8DP?

Unassigning myself for now as I'm running a bit short on time today, but will pick it up if I get some time later.

[staskus]

@jaclync sorry for not including that, updated! It's no rush, it can be reviewed next week to get into 23.3

[joshheald]

Thanks for fixing this.