Make apprise notification title configurable in UI

server/notification-providers/apprise.js

@@ -1,22 +1,15 @@
 const NotificationProvider = require("./notification-provider");
 const childProcess = require("child_process");
 
-/**
- * If you use an apprise backend that requires the notification title to
- * be set (such as for example messaging a Zulip Stream), you can use this
- * environment variable to configure the title.
- */
-const { APPRISE_NOTIFICATION_TITLE } = process.env;
-
 class Apprise extends NotificationProvider {
 
     name = "apprise";
 
     async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
         const args = [ "-vv", "-b", msg, notification.appriseURL ];
-        if (APPRISE_NOTIFICATION_TITLE) {
+        if (notification.title) {
             args.push("-t");
-            args.push(APPRISE_NOTIFICATION_TITLE);
+            args.push(notification.title);
         }
         const s = childProcess.spawnSync("apprise", args);