fix: Temporarily put back sampleRate configuration

Results without an assigned sampleRate were wrong. Temporarily assigning a sampleRate provides reasonable accuracy in webkit browsers. However, voice recording will not work in Firefox.

assets/js/app.js

@@ -65,7 +65,7 @@ Hooks.AudioRecorder = {
       console.log("Starting audio recording");
 
       if (!audioContext) {
-        audioContext = new AudioContext();
+        audioContext = new AudioContext({ sampleRate: 16_000 });
 
         await audioContext.audioWorklet.addModule("/assets/pcm-processor.js");