Update app.py

Added VisitWebpageTool import and in the tools array

app.py

@@ -1,4 +1,4 @@
-from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
+from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool, VisitWebpageTool
 import datetime
 import requests
 import pytz
@@ -56,7 +56,7 @@ with open("prompts.yaml", 'r') as stream:
     
 agent = CodeAgent(
     model=model,
-    tools=[final_answer, search_tool, image_generation_tool, get_current_time_in_timezone], ## add your tools here (don't remove final answer)
+    tools=[final_answer, VisitWebpageTool, search_tool, image_generation_tool, get_current_time_in_timezone], ## add your tools here (don't remove final answer)
     max_steps=6,
     verbosity_level=1,
     grammar=None,