dark mode, logging fixes to avoid agent traffic bloat

app/scripts/gunicorn.sh

@@ -1,4 +1,10 @@
 #!/bin/sh
 set -eu
 
-exec gunicorn keywarden.wsgi:application --bind 0.0.0.0:8000 --workers 3
+exec gunicorn keywarden.wsgi:application \
+    --bind 0.0.0.0:8000 \
+    --workers 3 \
+    --access-logfile /var/log/keywarden/gunicorn-access.log \
+    --error-logfile /var/log/keywarden/gunicorn-error.log \
+    --capture-output \
+    --log-level info