update to bash

installer.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 
 print_message() {
     echo " ️  $1"
@@ -183,7 +183,7 @@ if [ "$RESOLVE_ARNS" = "y" ] || [ "$RESOLVE_ARNS" = "Y" ]; then
     read -r ARNS_ROOT_HOST
     if [ -n "$ARNS_ROOT_HOST" ]; then
         update_or_add_env_var "ARNS_ROOT_HOST" "$ARNS_ROOT_HOST"
-        
+
         # Check if the resolver service was selected
         if ! echo "$SERVICES_SELECTED" | grep -q "4"; then
             print_message "You chose to resolve ArNS names, but the resolver service is not enabled. The resolver service is necessary for this feature."
@@ -298,4 +298,4 @@ print_message "AR.IO Node Repository: https://github.com/ar-io/ar-io-node"
 print_message "AR.IO Node Overview Docs: https://docs.ar.io/gateways/ar-io-node/overview/"
 
 echo ""
-print_success "Congratulations for setting up your AR.IO node! Happy syncing! 🎉"
+print_success "Congratulations for setting up your AR.IO node! Happy syncing! 🎉"