Update AppRun

icon updates

.github/workflows/AppRun

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+export QT_QPA_PLATFORMTHEME=gtk3
+
 mkdir -p $HOME/.local/share/icons/hicolor/scalable/apps && cp $APPDIR/yuzu.svg $HOME/.local/share/icons/hicolor/scalable/apps
 
 GITVER=`wget -qO- https://www.github.com/pineappleEA/pineapple-src/releases/tag/continuous | grep pineappleEA/pineapple-src/commit/ | cut -d '"' -f 2 | cut -d '/' -f 5 | awk '!x[$0]++'`