Option to control how notifications are shown

src/lib/utils.ts

@@ -635,6 +635,9 @@ export function nextLetter(s: string): string {
 }
 
 export function playSound(sound: string) {
+    if (!configState.canPlayNotificationSound())
+        return;
+
     const url = `${location.origin}/sound/${sound}`;
     const audio = new Audio(url);
     audio.play();