hacky fix for mastodon auth

this requires users to DM the service account rather than the service account DMing the user.

backend/src/lib/delivery/mastodon.ts

@@ -43,9 +43,9 @@ class MastodonCompatible_ extends DeliveryProvider<{ token: string }> {
   }
 
   isThisFor(software_name: string): boolean {
-    // TODO: add other softwares that work w/ mastodon DMs
-    const compatible = ["mastodon", "pixelfed"];
-    return compatible.indexOf(software_name) > -1;
+    // i was having some trouble getting Takahē to deliver posts to mastodon users
+    // so we will just have users send a message to the service account instead
+    return false;
   }
 
   async send(