性能优化，优化计算 token 的 cpu 开销

applications/utils/nlp/split_text_into_sentences.py

@@ -13,6 +13,6 @@ class SplitTextIntoSentences:
 
     @staticmethod
     def lang_chain_tokenize(text: str) -> List[str]:
-        splitter = RecursiveCharacterTextSplitter(chunk_size=100, chunk_overlap=10)
+        splitter = RecursiveCharacterTextSplitter(chunk_size=64, chunk_overlap=16)
         docs = splitter.split_text(text)
         return docs