[BUG][iOS] Survey close button is unresponsive/not working on v9.4.20

[Nanow]

Description

When a survey is displayed on iOS using intercom_flutter version 9.4.20, the close button ("X") in the top corner does not respond to taps. The user is unable to dismiss the survey unless they complete it.

Steps to Reproduce

1. Initialize Intercom with valid credentials.
2. Trigger an Intercom Survey (either programmatically or via auto-targeting).
3. Attempt to tap the close button ("X") on the survey modal.
4. Observe that the tap is ignored and the survey remains open.

Expected Behavior
The survey should close immediately when the close button is tapped.

Actual Behavior
The close button does not respond to touch events.

Environment

• intercom_flutter version: 9.4.20
• Flutter version: 3.35.7
• Platform: iOS
• iOS Version: iOS 26.1,

Additional Context

• This issue seems to be specific to iOS (Android works as expected ).
• No specific error logs are shown in the console when tapping the button.

ScreenRecording_12-08-2025.16-35-47_1.1.MP4