Update scrypted-install.sh

add npm (node 18.x stopped utilizing npm by default)

install/scrypted-install.sh

@@ -71,10 +71,11 @@ curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dea
 echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_18.x nodistro main" >/etc/apt/sources.list.d/nodesource.list
 msg_ok "Set up Node.js Repository"
 
-msg_info "Installing Node.js"
+msg_info "Installing Node.js/npm"
 $STD apt-get update
 $STD apt-get install -y nodejs
-msg_ok "Installed Node.js"
+$STD apt-get install -y npm
+msg_ok "Installed Node.js/npm"
 
 msg_info "Updating Python3"
 $STD apt-get install -y \