[iOS 26] Fix blocked product fields editing in iOS 26

[RafaelKayumov]

WOOMOB-1259

Description

This pull request addresses a change in gesture recognizer behavior observed on newer iOS SDKs. The gestureRecognizer(_:shouldBeRequiredToFailBy:) delegate method was being unexpectedly triggered by simple taps on UI elements like text fields, even when no swipe gesture was performed. This is likely due to internal refinements in how UIKit handles gesture recognition. To make our conditional swipe-back logic more robust and explicit, this change replaces the previous implementation with gestureRecognizerShouldBegin(_:). This is the standard and more direct method for conditionally enabling or disabling a gesture, ensuring our code is more resilient to future iOS updates.

Consider checking out the video attached to the task for clarity.

Testing steps

In manual testing our objective is to make sure that the "swipe back" gesture is properly detected and "Discard changes" wall is presented where needed - both on iOS 18 and iOS 26. The device testing is preferred to have proper swipe back gesture.

Testing steps Xcode 16.x + iOS 16.x

• Build and run the app with Xcode 16.x + iOS 18.x Device.
• Navigate to a product details screen
• Tap on "Price" field to open price settings
• Tap on "Schedule sale" toggle to reveal date settings
• Tap on "From" or "To" date to reveal the date picker. Tap on the date picker
• Make sure the date rows and date picker are interactive and work as expected
• Make sure the "Discard changes" dialogue doesn't pop up when tapping on various fields on "Price" editing screen
• Tap on the "back" item in navigation bar. Make sure the "Discard changes" dialogue pops up. Close the dialogue.
• Do the swipe back gesture. Make sure the "Discard changes" dialogue pops up. Close the dialogue.

Testing steps Xcode 26 + iOS 26

• Build and run the app with Xcode 26 + iOS 26 device.
• Repeat the same steps as in scenario above.

Testing information

Tested on iOS 18.4 device iOS 26 simulator. Confirmed the back swipe works on both OS versions detecting unsaved changes.

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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	pr16133-6335050
	Version	23.2
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	6335050
	Installation URL	72fcthu50ep40

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

[itsmeichigo]

Tested the change with simulator 26.0 and confirmed that this fixes the issue ✅

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 23.3. 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.

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