Coil's execute/enqueue blocking the main thread

[MagenL]

Hi,

First, I like to start with a warm thank you for this wonderful library.

In the RealImageLoader class both functions - enqueue and execute use/block the main thread for fetching images.
while it's necessary to change the UI, sometimes, we need to prefetch the images even before the UI exists, for this, we use ImageLoader through the context, and then transfer the actual bitmap to the view when it's ready.

in these scenarios, we expect to use Dispatchers.IO all the way.

screenshot from RealImageLoader class -