Use only first returned bridge IP

Author: maggie44

src/.env_vars

@@ -1,4 +1,4 @@
 #!/usr/bin/env
 
 # Exports the current bridge network IP address
-export BRIDGE_NETWORK_IP=$(ip route | awk '/br-/ { print $7 }')
+export BRIDGE_NETWORK_IP=$(ip route | awk '/br-/ { print $7 }' | head -n 1)