fix start timestamp in sentence_info (#2024)

lingji-yidong

2024-08-19 f43da18b5e097515c12438c70fc7918c29e5d0c8

 runtime/html5/static/wsconnecter.js

@@ -71,6 +71,7 @@
         "wav_name":  "h5",

         "is_speaking":  true,

         "chunk_interval":10,

         "itn":getUseITN(),

         "mode":getAsrMode(),

         

      };