[neomutt] Add error detection to account loading script

config/neomutt/folder-hooks.sh

@@ -1,14 +1,23 @@
 #!/bin/sh
 
+acc_dir="$HOME/.config/neomutt/accounts/"
+
 # Select default account
-find ~/.config/neomutt/accounts/ -name "*.mail" -printf "source '%p'\n" -quit
+default="$(find "$acc_dir" -name "*.mail" -printf "source '%p'\n" -quit)"
+
+if [ -z "$default" ]; then
+  >&2 echo "No mail accounts found in $acc_dir"
+  exit 1
+fi
+
+printf '%s\n' "$default"
 
 # Order of the keys to use for the account switch macro
 chars="1234567890azertyuiopqsdfghjklmwxcvbn"
 i=1
 
 # Setup folder hooks for all the accounts
-for f in ~/.config/neomutt/accounts/*.mail; do
+for f in "$acc_dir"*.mail; do
   account="$(basename -s '.mail' "$f")"
   printf 'folder-hook =%s '\''source %s'\''\n' "$account" "$f"
   key="$(printf '%s' "$chars" | cut -c "$i")"