Add proton-launch

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/user/gui/gaming/proton/proton-launch.sh

@@ -0,0 +1,15 @@
+if [ "$#" -lt 1 ]; then
+  echo "Usage: $0 <executable-path> [args...]"
+  exit 1
+fi
+
+PROTON_DATA="$HOME/.local/share/proton"
+
+exec="$(realpath "$1")"
+name="$(basename "$exec")"
+mkdir -p "$PROTON_DATA/$name"
+
+export STEAM_COMPAT_DATA_PATH="$PROTON_DATA/$name"
+export STEAM_COMPAT_CLIENT_INSTALL_PATH="$PROTON"
+
+"$STEAM_RUN" "$PROTON/proton" run "$exec" "${@:2}" >/dev/null 2>&1 & disown