disable svg css agent by default (#3269)

skyvern/forge/app.py

@@ -79,6 +79,8 @@ EXTRACTION_LLM_API_HANDLER = (
     if SETTINGS_MANAGER.EXTRACTION_LLM_KEY
     else LLM_API_HANDLER
 )
+SVG_CSS_CONVERTER_LLM_API_HANDLER = SECONDARY_LLM_API_HANDLER if SETTINGS_MANAGER.SECONDARY_LLM_KEY else None
+
 WORKFLOW_CONTEXT_MANAGER = WorkflowContextManager()
 WORKFLOW_SERVICE = WorkflowService()
 AGENT_FUNCTION = AgentFunction()