Update app.py

app.py

@@ -403,7 +403,7 @@ class IssueManager:
         if not match:
             logger.error(f"Invalid GitHub URL format: {{self.repo_url}}")
             empty_fig = go.Figure()
-            empty_fig.update_layout(title="Issue Severity Distribution", annotations=[{{"text": "Invalid URL.", "xref": "paper", "yref": "paper", "showarrow": False}], plot_bgcolor='rgba(0,0,0,0)', paper_bgcolor='rgba(0,0,0,0)')
+            empty_fig.update_layout(title="Issue Severity Distribution", annotations=[{{"text": "Invalid URL.", "xref": "paper", "yref": "paper", "showarrow": False}}], plot_bgcolor='rgba(0,0,0,0)', paper_bgcolor='rgba(0,0,0,0)')
             return [], empty_fig, "Error: Invalid GitHub URL format. Use https://github.com/owner/repo", empty_fig
         self.repo_owner, self.repo_name = match.groups()
         self.repo_local_path = WORKSPACE / f"{{self.repo_owner}}_{{self.repo_name}}"