Update hacore2hacontainer-data.sh

check PVE

misc/hacore2hacontainer-data.sh

@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+clear
+if ! command -v pveversion >/dev/null 2>&1; then echo -e "⚠️  Run from the Proxmox Shell"; exit; fi
 while true; do
   read -p "Use to copy all data from a Home Assistant Core LXC to a Home Assistant Container LXC. Proceed(y/n)?" yn
   case $yn in