Adding web search tool

app.py

@@ -49,6 +49,7 @@ custom_role_conversions=None, # default role-mapping
 
 # Import tool from Hub
 image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)
+web_search_tool = load_tool("agents-course/web-search", trust_remote_code=True)
 
 with open("prompts.yaml", 'r') as stream:
     prompt_templates = yaml.safe_load(stream) # parse sys prompt into python dic