Change link for push notification helper

                            AlertDialog.Builder alert = new MaterialAlertDialogBuilder(context);

                            alert.setTitle(R.string.no_distributors_found);

                            final TextView message = new TextView(context);

                            String link = "https://fedilab.app/wiki/features/push-notifications/";

                            String link = "https://ntfy.sh/";

                            final SpannableString s =

                                    new SpannableString(context.getString(R.string.no_distributors_explanation, link));

                            Linkify.addLinks(s, Linkify.WEB_URLS);