bug: No Translucent Header when using virtual scroll

[CelloFloss]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Ionic Framework Version

v8.x

Current Behavior

When using a virtual scroll component such as rxAngular RxVirtualScrollViewportComponent the ion-header translucent option does not work.

The `ion-tab-bar' translucent effect also doesn't show unless the entire page is wrapped in a div with height set to 100%

Expected Behavior

The `ion-header' and 'ion-tab-bar' translucent effect option should function as expected when using a virtual scroll component such as the rxAngular virtual scroll

Steps to Reproduce

1. Scroll through the virtual list on the first tab.
2. Notice the `ion-tab-bar' translucent effect showing correctly
3. Notice the ion-header NOT showing the translucent effect
4. navigate to the standard scroll tab and notice the header and tabs translucent effect showing as expected.

Code Reproduction URL

https://stackblitz.com/~/github.com/CelloFloss/rx-virtual-scroll-issue-ionic?file=README.md

Ionic Info

Ionic:

Ionic CLI : 7.2.0
Ionic Framework : @ionic/angular 8.4.1
@angular-devkit/build-angular : 19.0.6
@angular-devkit/schematics : 19.0.6
@angular/cli : 19.0.6
@ionic/angular-toolkit : 12.1.1

Utility:

cordova-res : 0.15.4
native-run : not installed globally

System:

NodeJS : v20.10.0
npm : 10.2.3
OS : macOS

Additional Information

No response