Always On Top - add a transparent when not in focus option

### Description of the new feature / enhancement

When an app is set to Always On Top, add an option to make the window Transparent when not in focus/in a hover-over state.

### Scenario when this would be used?

The main window you are working on is full screen, with the always on top window as a secondary.

EG: Main window is Microsoft Word, the always on top window is a reference source from the internet. You want to see the word window, but if you move into focus over where you've pinned the Always On Top window you want it to stop being transparent.

### Supporting information

_No response_

The issue does not identify a file, test, or entry point. Start by locating the Always On Top utility and its existing focus or hover behavior, then determine where its options and window transparency handling are implemented. Done means the new option can be configured and the pinned window becomes transparent when unfocused while returning to normal when focused or hovered.

Written by the indexing model from the issue text.