Update app.py to reflect the appropriate tool call for web search

app.py

@@ -5,7 +5,7 @@ import yaml
 from tools.final_answer import FinalAnswerTool
 from tools.book_tool import BookSearchTool, BookDetailsTool
 from tools.arxiv_tool import ArxivSearchTool, LatestPapersTool
-from tools.search_tool import DuckDuckGoSearchTool, VisitWebpageTool
+from tools.web_search import DuckDuckGoSearchTool
 from scheduler import initialize_scheduler
 from Gradio_UI import GradioUI
 
@@ -57,7 +57,6 @@ def initialize_agent():
     arxiv_search = ArxivSearchTool()
     latest_papers = LatestPapersTool()
     web_search = DuckDuckGoSearchTool(max_results=5)  # Initialize DDG search with 5 results
-    visit_webpage = VisitWebpageTool()
     
     # Initialize the model
     model = HfApiModel(
@@ -82,8 +81,7 @@ def initialize_agent():
             book_details,
             arxiv_search,
             latest_papers,
-            web_search,
-            visit_webpage
+            web_search
         ],
         max_steps=8,
         verbosity_level=1,