Update Dockerfile

Dockerfile

@@ -1,8 +1,10 @@
 FROM python:3.10-slim
 
-# Install wkhtmltopdf and dependencies
+# Install wkhtmltopdf and dependencies for networking and fonts
 RUN apt-get update && apt-get install -y \
     wkhtmltopdf \
+    ca-certificates \
+    fontconfig \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
@@ -14,4 +16,4 @@ COPY . .
 RUN mkdir -p /app/temp && chmod -R 777 /app/temp
 
 ENV PORT=7860
-CMD ["python", "app.py"]
+CMD ["python", "app.py"]