perf(gpui): optimize screenshot alpha checks, flattening, and premultiplication - #2673

perf(gpui): optimize screenshot alpha checks, flattening, and premultiplication#2673

richiemcilroy merged 4 commits into

CapSoftware:mainCapSoftware/Cap:mainfrom

nikolas-sapa:perf/gpui-fast-screenshot-alphanikolas-sapa/Cap:perf/gpui-fast-screenshot-alphaCopy head branch name to clipboard