some fixes syntax and warning suppresion

Author: xitzhang

sdk/ai/Azure.AI.VoiceLive/src/ConversationSessionOptions.cs

@@ -21,7 +21,7 @@ public class ConversationSessionOptions : VoiceLiveSessionOptions
         /// Gets or sets the voice configuration for the conversation.
         /// </summary>
         /// <value>
-        /// The voice configuration to use for generating spoken responses. If not specified, 
+        /// The voice configuration to use for generating spoken responses. If not specified,
         /// the service will use a default voice.
         /// </value>
         public BinaryData Voice { get; set; }
@@ -118,4 +118,4 @@ internal override VoiceLiveRequestSession ToRequestSession()
             return session;
         }
     }
-}
+}