Standardize update success messages in scripts (#8757)

ct/openwebui.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env bash
 source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
 # Copyright (c) 2021-2025 tteck
 # Author: havardthom
@@ -73,7 +73,7 @@ function update_script() {
     $STD git stash pop
   fi
   systemctl start open-webui.service
-  msg_ok "Updated Successfully"
+  msg_ok "Updated successfully!"
   exit
 }