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/vhost.sh

@@ -1,12 +1,12 @@
 
-echo -e '\033[35m
+printf '\033[35m
         __               __
  _   __/ /_  ____  _____/ /_
 | | / / __ \/ __ \/ ___/ __/
 | |/ / / / / /_/ (__  ) /_
 |___/_/ /_/\____/____/\__/
-\033[0m'
-echo -e "\033[35;1mNginx VHOST install \033[0m"
+\033[0m\n'
+printf "\033[35;1mNginx VHOST install \033[0m\n"
 while [ "$vh" != "y" ] && [ "$vh" != "n" ]
 do
   echo -n "Should we install a vhost? [y|n] "
@@ -53,7 +53,7 @@ if [ "$vh" = "y" ]; then
   _letsencrypt=""
   while [ "$_letsencrypt" != "yes" ] && [ "$_letsencrypt" != "no" ]
   do
-    echo -e "\033[35;1mLet's encrypt \033[0m"
+    printf "\033[35;1mLet's encrypt \033[0m\n"
     echo "Let's encrypt needs a public registered domain name with proper DNS records ( A records or CNAME records for subdomains pointing to your server)."
     echo -n "Should we install let's encrypt certificate with $_domain? [yes|no] "
     read _letsencrypt
@@ -162,7 +162,7 @@ if [ "$vh" = "y" ]; then
 
   # restart nginx
   systemctl restart nginx
-  echo -e "\033[92;1mvhost $_domain configured \033[Om"
+  printf "\033[92;1mvhost $_domain configured \033[Om\n"
 else
   echo "Vhost installation aborted"
 fi