feat(notifications): make embedded posters optional (#1364)

* feat(notifications): make images optional

* fix(notifications): added en i18n config

* fix: prettify

* fix(notifications): added embedImage support for ntfy

* fix(frontend): update embedImage on form state change and submission

* fix(locale): updated locale for embedImage

* fix: renamed embedImage to embedPoster

server/lib/notifications/agents/discord.ts

@@ -109,7 +109,9 @@ class DiscordAgent
     type: Notification,
     payload: NotificationPayload
   ): DiscordRichEmbed {
-    const { applicationUrl } = getSettings().main;
+    const settings = getSettings();
+    const { applicationUrl } = settings.main;
+    const { embedPoster } = settings.notifications.agents.discord;
 
     const appUrl =
       applicationUrl || `http://localhost:${process.env.port || 5055}`;
@@ -223,9 +225,11 @@ class DiscordAgent
           }
         : undefined,
       fields,
-      thumbnail: {
-        url: payload.image,
-      },
+      thumbnail: embedPoster
+        ? {
+            url: payload.image,
+          }
+        : undefined,
     };
   }