vulkan/wsi/wayland: More descriptive name for swapchain queue

We can have multiple swapchains, and we can also have retired swap chains that can continue to deliver events briefly after being replaced. It's helpful to have both a surface id and a per surface swapchain id.

This was motivated by seeing the carnage !27851 (merged) fixes, and hoping to make wayland debug text a little more useful for such cases.