fix: voice input sensitivity

src/lib/components/chat/MessageInput/CallOverlay.svelte

@@ -145,7 +145,7 @@
 		camera = false;
 	};
 
-	const MIN_DECIBELS = -45;
+	const MIN_DECIBELS = -55;
 	const VISUALIZER_BUFFER_LENGTH = 300;
 
 	const transcribeHandler = async (audioBlob) => {