Fixed WebHandler routing errors

Fixed issue where MultiPartEpisode was being appended to all episodes and not just multi-part episodes.

Multi-EP episode names are no longer appended to form one giant filename but instead 'MultiPartEpisode' is tacked on.

Reverted toggles for provider priorities, subtitle plugins, and post-processor metadata choices

Misc provider URL updates.
Misc fixes for tests.

Disabled closing of logger on shutdown/restart

Fixed table sorting issues for mass update and main shows views

Fixed issues with episode searches and episode search retries
Fixed issue with data retrieval from database files