New menu style for pihole

src/freedombone-app-pihole

@@ -255,27 +255,23 @@ function pihole_resume {
 }
 
 function configure_interactive_pihole {
+    W=(1 $"Edit ads list"
+       2 $"Edit blacklisted domain names"
+       3 $"Edit whitelisted domain names"
+       4 $"Change upstream DNS servers"
+       5 $"Pause blocker"
+       6 $"Resume blocker")
+
     while true
     do
-        data=$(mktemp 2>/dev/null)
-        dialog --backtitle $"Freedombone Control Panel" \
-               --title $"Ad Blocker" \
-               --radiolist $"Choose an operation:" 16 70 7 \
-               1 $"Edit ads list" off \
-               2 $"Edit blacklisted domain names" off \
-               3 $"Edit whitelisted domain names" off \
-               4 $"Change upstream DNS servers" off \
-               5 $"Pause blocker" off \
-               6 $"Resume blocker" off \
-               7 $"Exit" on 2> "$data"
-        sel=$?
-        case $sel in
-            1) rm -f "$data"
-               exit 1;;
-            255) rm -f "$data"
-                 exit 1;;
-        esac
-        case $(cat "$data") in
+        # shellcheck disable=SC2068
+        selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Ad blocker" --menu $"Choose an operation, or ESC for main menu:" 19 70 12 "${W[@]}" 3>&2 2>&1 1>&3)
+
+        if [ ! "$selection" ]; then
+           break
+        fi
+
+        case $selection in
             1) editor $PIHOLE_CUSTOM_ADLIST
                update_pihole_interactive
                ;;
@@ -292,10 +288,7 @@ function configure_interactive_pihole {
                ;;
             6) pihole_resume
                ;;
-            7) rm -f "$data"
-               break;;
         esac
-        rm -f "$data"
     done
 }