Fix voice handling of new lines

src/discord/voices.rs

@@ -142,8 +142,13 @@ pub async fn speak(
     let dict = get_voice_dictionary(&voice_path).await.unwrap();
 
     let mut sentence = Vec::new();
-    for word in phrase.split(' ') {
+    for word in phrase.split(&[' ', '\n']) {
         let word = word.to_lowercase();
+
+        if word.is_empty() || word == " " {
+            continue
+        }
+
         let mut add_period = false;
         let mut add_comma = false;
         let word = if word.ends_with(',') {