Request: Function to retrieve bounds of window contents, pre-clipping.

nk_window_get_content_region almost does what I need, but it unfortunately doesn't count any overspill if the content is larger than the window, meaning it caps out at the window size.

I need a version of this function that would allow me to get the real bounds of the content. It doesn't appear that Nuklear currently has a function that does this, and I'm unable to accurately calculate the width/height I need to perfectly resize the window to fit the inner contents without need of a scrollbar.

I'm trying to do this, essentially (this is buggy/broken code, just used to make an approximate mockup of what I'd use it for): https://shadowmavericks.com/files/ShareX/tfury_2024-09-20_16-25-29.mp4

Start by reading the existing nk_window_get_content_region function and trace how it clips content to the window bounds. Determine how a corresponding query could expose the un clipped content bounds, then verify that the returned width and height support resizing without a scrollbar.

Written by the indexing model from the issue text.