Title: Fix the position of the bottom buttons in the modal during scrolling

[tsutsu3]

Description

In the current implementation, the "Cancel" and "OK" buttons at the bottom of the modal scroll along with the content. This can negatively affect the user experience, especially when the modal contains long content. Users are forced to scroll all the way to the bottom to access these actions.

Expected Behavior

The "Cancel" and "OK" buttons should be fixed at the bottom of the modal, regardless of the content scroll position. This allows users to easily perform actions without needing to scroll through the entire content.

Acceptance Criteria

• The bottom buttons remain visible and fixed at the bottom of the modal during content scrolling.
• The buttons do not overlap or interfere with the content display.
• Responsive design: Ensure that this behavior works correctly for both portrait and landscape modes.

Targets

• logs filter
• App unlcok

Ref #96