Standardize update success messages in scripts (#8757)

ct/bytestash.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 community-scripts ORG
 # Author: Slaviša Arežina (tremor021)
@@ -54,7 +54,7 @@ function update_script() {
       msg_error "PLEASE MAKE A BACKUP FIRST!"
       exit
     fi
-    msg_ok "Updated Successfully!"
+    msg_ok "Updated successfully!"
   fi
   exit
 }