[Feature Request] Add the option to delay the taking of large screenshots by a configurable amount of frames.

[JustPixeled]

Minecraft: 1.21.4
Fabric loader: 0.16.10
Mod version: 1.21.4-3.0.3
Shader pack: MakeUp UltraFast 9.1c

I'm asking about this feature because when I try to take large screenshots with my favorite shader pack, the screenshots turns out black.
It seems that when you take a large screenshot, it reloads the current shader pack that you have enabled.
Since the shader starts out black in the first few frames, it ends up capturing a black screen.

Here's an example screenshot: https://media.essential.gg/83de7a94-6583-4239-d34b-49a645cfa300