feature: Add an option to enable Telegram to work behind a proxy. (#6125)

Co-authored-by: Frank Elsinga <frank@elsinga.de>

server/notification-providers/freemobile.js

@@ -11,10 +11,11 @@ class FreeMobile extends NotificationProvider {
         const okMsg = "Sent Successfully.";
 
         try {
+            let config = this.getAxiosConfigWithProxy({});
             await axios.post(`https://smsapi.free-mobile.fr/sendmsg?msg=${encodeURIComponent(msg.replace("🔴", "⛔️"))}`, {
                 "user": notification.freemobileUser,
                 "pass": notification.freemobilePass,
-            });
+            }, config);
 
             return okMsg;