Fix edge-to-edge support

[kamilReady]

SDK version: 4.10.1

Environment: Development

Are logs available?
Irrelevant

Describe the bug
The Customer.io SDK's in-app messaging dialogs do not properly support Android 15's mandatory edge-to-edge display requirements. When in-app messages are displayed, the status bar and navigation bar areas show solid gray backgrounds instead of being transparent, which breaks the immersive edge-to-edge experience that Android 15 enforces.

The issue is particularly visible in promotional pop-ups and in-app messages where the system bars should be transparent to allow the app content to extend behind them, creating a more immersive user experience.

To Reproduce

1. Configure Customer.io SDK with in-app messaging module
2. Set up edge-to-edge support in the Android app using enableEdgeToEdge()
3. Trigger an in-app message (promotional pop-up, notification, etc.)
4. Observe that the status bar and navigation bar areas show solid backgrounds instead of being transparent
5. The issue is more prominent on Android 15+ devices where edge-to-edge is mandatory

Expected behavior

• Status bar and navigation bar should be transparent when Customer.io in-app messages are displayed
• The app content should extend behind the system bars for an immersive experience
• In-app messages should respect the app's edge-to-edge configuration
• System bar icons should remain visible and properly contrasted

Screenshots

Additional context

[mahmoud-elmorabea]

Hey @kamilReady

Thanks for reporting! I will add a ticket to our team to make sure that our in-app message activity is properly setup for edge-to-edge.

However, I tried reproducing the issue using our sample app and multiple devices but can't seem to get the same result as you are, can you please share some more info:

• Device you are testing on and OS version
• Any particular theme might be setup app wide in your app?

Here are some screenshots of my testing

[kamilReady]

Devices where I can reproduce it: Huawei P30 Pro, Android 10. Asus Zenfone 8 Android 13.

Our Theme extends Theme.MaterialComponents.DayNight.NoActionBar.Bridge and we call enableEdgeToEdge in Activity#onCreate