Update setup.sh

Added f flag to the rm commend otherwise the script always fails on first run as the directory never exists.

home_pro_server/setup.sh

@@ -1,10 +1,10 @@
 #!/bin/bash
 set -e
 
-rm -r bottlecapdave_homeassistant_octopus_energy
+rm -rf bottlecapdave_homeassistant_octopus_energy
 mkdir bottlecapdave_homeassistant_octopus_energy
 cd bottlecapdave_homeassistant_octopus_energy
 wget https://raw.githubusercontent.com/BottlecapDave/HomeAssistant-OctopusEnergy/develop/home_pro_server/oeha_server.py
 chmod +x oeha_server.py
 wget https://raw.githubusercontent.com/BottlecapDave/HomeAssistant-OctopusEnergy/develop/home_pro_server/start_server.sh
-chmod +x start_server.sh
+chmod +x start_server.sh