fix: collapse newlines before TTS to prevent mid-chapter pauses

Author: chizkidd

docs/index.html

@@ -1538,7 +1538,7 @@ <h3 id="panel-heading">Contents</h3>
     ? ch.text.slice(state.charOffset)
     : ch.text;
 
-  const utter = new SpeechSynthesisUtterance(text);
+  const utter = new SpeechSynthesisUtterance(text.replace(/\n+/g, ' '));
   utter.rate = state.speed;
   if (state.voice) utter.voice = state.voice;
   state.wordIndex = 0;