pleroma configuration menu style

src/freedombone-app-pleroma

     read_config_param PLEROMA_EXPIRE_MONTHS
     while true
     do
-        data=$(mktemp 2>/dev/null)
-        dialog --backtitle $"Freedombone Control Panel" \
-               --title $"Pleroma" \
-               --radiolist $"Choose an operation:" 15 70 6 \
-               1 $"Set a background image" off \
-               2 $"Set the title" off \
-               3 $"Disable new account registrations" off \
-               4 $"Add a custom emoji" off \
-               5 $"Set post expiry period (currently $PLEROMA_EXPIRE_MONTHS months)" off \
-               6 $"Exit" on 2> "$data"
-        sel=$?
-        case $sel in
-            1) rm -f "$data"
-               return;;
-            255) rm -f "$data"
-                 return;;
-        esac
-        case $(cat "$data") in
+        W=(1 $"Set a background image"
+           2 $"Set the title"
+           3 $"Disable new account registrations"
+           4 $"Add a custom emoji"
+           5 $"Set post expiry period (currently $PLEROMA_EXPIRE_MONTHS months)")
+
+        # shellcheck disable=SC2068
+        selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Pleroma" --menu $"Choose an operation, or ESC to exit:" 14 60 5 "${W[@]}" 3>&2 2>&1 1>&3)
+
+        if [ ! "$selection" ]; then
+            break
+        fi
+
+        case $selection in
             1) pleroma_set_background_image;;
             2) pleroma_set_title;;
             3) pleroma_disable_registrations;;
             4) pleroma_add_emoji;;
             5) pleroma_set_expire_months;;
-            6) rm -f "$data"
-               break;;
         esac
-        rm -f "$data"
     done
 }