add --x-frame-options NONE in Dockerfile

Dockerfile

@@ -44,6 +44,7 @@ CMD mlflow server -p $PORT \
     --backend-store-uri $BACKEND_STORE_URI \
     --default-artifact-root $ARTIFACT_STORE_URI \
     --allowed-hosts "*" \
-    --cors-allowed-origins "*"
+    --cors-allowed-origins "*" \
+    --x-frame-options NONE