Fix podnapisi.net not returning results

[saddfox]

Fixes the following issue which always triggered no results condition.

/app/bazarr/bin/bazarr/../custom_libs/subliminal_patch/providers/podnapisi.py:212: FutureWarning: The behavior of this method will change in future versions. Use specific 'len(elem)' or 'elem is not None' test instead.
  if (not xml.find('pagination/results') or not xml.find('pagination/results').text or not

This would result in bazarr iterating over all alternative titles and eventually triggering
WARNING (api:40) - HTTPSConnectionPool(host='www.podnapisi.net', port=443): Read timed out. (read timeout=30), retrying in 5 seconds...

The above still happens because podnapisi.net is utterly broken, but now it at least sometimes returns results.

[morpheus65535]

Thanks!