Update Dockerfile

Dockerfile

@@ -9,7 +9,7 @@ COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy the rest of the app
-COPY app.py video.py ./
+COPY app.py image_fetcher.py video.py ./
 RUN apt-get update && apt-get install -y ffmpeg
 
 # Expose port 5000 (Flask default)