Proxmox Backup Server Renaming and Update fix (#2012)

* Remaned PBS to long name Proxmox Backup Server and fixed install check

* Fix Name

ct/proxmox-backup-server.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+source <(curl -s https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2025 tteck
+# Author: tteck (tteckster)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+
+function header_info {
+clear
+cat <<"EOF"
+    ____                                          ____             __                  _____
+   / __ \_________  _  ______ ___  ____  _  __   / __ )____ ______/ /____  ______     / ___/___  ______   _____  _____
+  / /_/ / ___/ __ \| |/_/ __ `__ \/ __ \| |/_/  / __  / __ `/ ___/ //_/ / / / __ \    \__ \/ _ \/ ___/ | / / _ \/ ___/
+ / ____/ /  / /_/ />  </ / / / / / /_/ />  <   / /_/ / /_/ / /__/ ,< / /_/ / /_/ /   ___/ /  __/ /   | |/ /  __/ /
+/_/   /_/   \____/_/|_/_/ /_/ /_/\____/_/|_|  /_____/\__,_/\___/_/|_|\__,_/ .___/   /____/\___/_/    |___/\___/_/
+                                                                         /_/
+EOF
+}
+header_info
+APP="Proxmox-Backup-Server"
+var_tags="backup"
+var_cpu="2"
+var_ram="2048"
+var_disk="10"
+var_os="debian"
+var_version="12"
+var_unprivileged="1"
+
+# App Output & Base Settings
+base_settings
+
+# Core 
+variables
+color
+catch_errors
+
+function update_script() {
+    header_info
+    check_container_storage
+    check_container_resources
+    if [[ ! -e /usr/sbin/proxmox-backup-manager ]]; then msg_error "No ${APP} Installation Found!"; exit; fi
+        msg_info "Updating $APP LXC"
+        apt-get update &>/dev/null
+        apt-get -y upgrade &>/dev/null
+        msg_ok "Updated $APP LXC"
+    exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}https://${IP}:8007${CL}"