[CP][3.27][ios]enable the webview non tappable workaround by checking subviews recursively #57168

[hellohuanlin]

CP for #57168 and #57193

List which issues are fixed by this PR. You must list at least one issue.
flutter/flutter#158961

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Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene wiki page, which explains my responsibilities.
• I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
• I listed at least one issue that this PR fixes in the description above.
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• I updated/added relevant documentation (doc comments with ///).
• I signed the CLA.
• All existing and new tests are passing.

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[hellohuanlin]

I was able to verify this fixes flutter_inappwebview

[hellohuanlin]

Turning to draft after verifying AdMob

Verified admob behavior.