fix(ui): viewer progress-image handoff: slow reveal, overlay stuck after socket drop, stale-image flash on quick re-generate - #9434

fix(ui): viewer progress-image handoff: slow reveal, overlay stuck after socket drop, stale-image flash on quick re-generate#9434

lstein wants to merge 20 commits into

invoke-ai:maininvoke-ai/InvokeAI:mainfrom

lstein:fix/viewer-progress-image-handofflstein/InvokeAI:fix/viewer-progress-image-handoffCopy head branch name to clipboard