fix syntax err

src/api.py

@@ -136,7 +136,7 @@ async def analyze_chart_image(image_url: str, prompt_text: str) -> str:
             print(f"Vision Error: {e}")
             return ""
 
-async def generate_writing_feedback(prompt: str, essay: str, scores: WritingScores, task_type: int, img_desc: str = "", overall_score: float) -> dict:
+async def generate_writing_feedback(prompt: str, essay: str, scores: WritingScores, task_type: int,  overall_score: float, img_desc: str = "") -> dict:
     print("Generating Writing feedback...")
     scores_dict = scores.model_dump()
     
@@ -233,7 +233,7 @@ async def grade_writing(request: WritingRequest):
                  scores.lexicalResource + scores.grammaticalRange) / 4)
                  
     # Feedback
-    fb = await generate_writing_feedback(request.prompt, request.essay, scores, request.task_type, image_desc, overall)
+    fb = await generate_writing_feedback(request.prompt, request.essay, scores, request.task_type, overall, image_desc)
     sf = fb.get("shortFeedback", {})
     
     tr_fb = sf.get("Task Response") or sf.get("Task Achievement") or "No feedback"