File gpu-offload.patch of Package steam

Index: steam/steam.desktop
===================================================================
--- steam.orig/steam.desktop	2020-05-12 11:35:42.780458224 -0600
+++ steam/steam.desktop	2020-05-12 11:36:31.497120125 -0600
@@ -35,5 +35,6 @@
 MimeType=x-scheme-handler/steam;
 Actions=Store;Community;Library;Servers;Screenshots;News;Settings;BigPicture;Friends;
+PrefersNonDefaultGPU=true
 
 [Desktop Action Store]
 Name=Store