make ts happy

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/BasePlatform.ts

@@ -85,7 +85,8 @@ export default abstract class BasePlatform {
 
     abstract displayNotification(title: string, msg: string, avatarUrl: string, room: Object);
 
-    abstract loudNotification(ev: Event, room: Object);
+    loudNotification(ev: Event, room: Object) {
+    };
 
     /**
      * Returns a promise that resolves to a string representing the current version of the application.