Replace echo -e with printf for portable ANSI banners

dash (Debian's /bin/sh) doesn't support echo's -e flag: it prints "-e"
literally as text before processing the rest of the string's backslash
escapes. Every script's colored banner was affected. printf's escape
handling is POSIX-mandated and behaves identically under dash and bash,
so swap all 90 echo -e calls for printf, appending the trailing \n that
echo used to add implicitly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

bin/nfs.sh

@@ -1,14 +1,14 @@
 #!/bin/sh
 
-echo -e '\033[35m
+printf '\033[35m
         __     
  _ __  / _|___ 
 |  _ \| |_/ __|
 | | | |  _\__ \
 |_| |_|_| |___/
                 
-\033[0m'
-echo -e "\033[35;1mLEMP server (Nginx Mysql Php-fpm) \033[0m"
+\033[0m\n'
+printf "\033[35;1mLEMP server (Nginx Mysql Php-fpm) \033[0m\n"
 
 
 apt install nfs-kernel-server