LVGL requires is_displaying.page function

[plplaaa2]

Describe the problem you have/What new integration you would like

A condition is required when a particular page is displayed in LVGL. It is necessary to hide or show widgets on a specific page in top_layer.

For example, the clock of top_layer on a clock page is not required.

The display core has the condition(display.is_displaying_page), but LVGL does not support.

Please describe your use case for this integration and alternatives you've tried:

Additional context