feat: Stinger transition on top of DSK

[North-West-Wind]

I have seen 3 separate individuals in discussion and 1 review asking for this exact thing, and I too, want this feature.

Currently, DSK overlays on top of any transitions, including Stinger. While there is a "Tie" option, it only ties to the end of a Stinger transition.

Feature Description
Add an option for DSK to be on top or below of transitions.
Or, when "Tie" is active, tie to the start of the transition instead of the end, allowing synchronized transitions.

Temporary Solution
I stream and run Firebot on the side, which is connected to OBS Websocket. I set up 2 event listeners for OBS Scene Transition Started and Ended, and in those 2 events, use CallVendorRequest to disable and enable the overlay.

I set DSK to use fade transitions, so it fades out before the transition, and fades in after the transition.

However, this solution causes "Exclude Scene" to not work at all. I have to go through multiple API calls to manually check if a scene is excluded.