feat: modify internet search

Author: CaralHsi

examples/core_memories/tree_textual_memory.py

@@ -244,6 +244,7 @@ def embed_memory_item(memory: str) -> list[float]:
     print(f"{i}'th similar result is: " + str(r["memory"]))
 print(f"Successfully search {len(results)} memories")
 
+# close the synchronous thread in memory manager
 my_tree_textual_memory.memory_manager.close()
 
 # my_tree_textual_memory.dump