Update Dockerfile

Dockerfile

@@ -1,5 +1,8 @@
-   # Use the multi-platform image
-   FROM samyak1515151/pdf:multiplatform
-   
-   # CMD is likely already in your image, but explicit for clarity
-   CMD ["python", "app.py"]
+# Use the multi-platform image
+FROM samyak1515151/pdf:fixed
+
+# Set writable directory for matplotlib
+ENV MPLCONFIGDIR=/tmp/matplotlib
+
+# CMD is likely already in your image, but explicit for clarity
+CMD ["python", "app.py"]