fix bigdesk-1.0.0 screenshot extenstion
fix bigdesk-1.0.0 screenshot extenstion

swimmingsand/bigdesk,AlphaStaxLLC/bigdesk,crate/bigdesk,siye1982/bigdesk,siye1982/bigdesk,lukas-vlcek/bigdesk,marsmensch/bigdesk,AlphaStaxLLC/bigdesk,AIsaac08/bigdesk,node/bigdesk,AIsaac08/bigdesk,swimmingsand/bigdesk,lukas-vlcek/bigdesk,node/bigdesk,marsmensch/bigdesk