Qt Examples: Unnecessary gray bar.

There is unnecessary gray bar that limits the usable UI space. The bar is visible in all orientations. When launched, the color bar is correctly on android UI buttons, after orientation changes, portrait mode adds extra white bar on top of it. Occasionally, especially in landscape mode, the bar forces UI to position higher and may clip UI components such as draggable menus. UI clipping may also happen without moving the UI components and bars being just drawn over the UI.

Same occurs at least with

• Scene Graph - OpenGL example.
• Charts with QML gallery example
• Declarative Camera
• Wearable.
• Contact List example
• Gallery Controls 2 example

Tested with Pixel 6a device.
Tested with Windows and MacOS (x86) hosts.