Allow FancyZone to act as a window

### Description of the new feature / enhancement

Expose fancy zone as window

### Scenario when this would be used?

Sharing tools, screenshot tools often operate on some window. For example, Teams. To share part of the screen we need two steps. Define FancyZone for shared part of the screen, then use app such as Ultra Wide Screen Share 2.0 and snap it on the zone and only then share it using teams. FancyZones could expose window sharing as an option so fancy zone would be available as window.

That would help greatly for ultra wide screens

### Supporting information

_No response_

The issue does not name any files, tests, or entry points. Start by locating the FancyZones implementation and reviewing how sharing tools identify windows; define the required behavior and acceptance criteria for exposing a zone as a shareable window before estimating the implementation.

Written by the indexing model from the issue text.