install.sh: Add caffeinate to keep machine on

Fixes: #47
Signed-off-by: Hector Martin <[email protected]>

Author: marcan

src/install.sh

@@ -22,4 +22,4 @@ if [ $(arch) != "arm64" ]; then
 fi
 
 exec </dev/tty >/dev/tty 2>/dev/tty
-exec $arch $python main.py "$@"
+exec $arch caffeinate -dis $python main.py "$@"