Add new feature, set file date to episode aired date. Fix, use alternati...

...ve Trakt API field for episode air time.

Fix, the Trakt API response show.air_time_utc contains erroneous data, this is replaced with show.air_time.

Add, new setting "Set File Date to Airdate" on the Media Management tab of the Settings page to toggle this feature for new/imported shows.

Change the home page "Series Editor" - "Rename" button to "Update Files" and add "Set File Date To Air Date" action button to this modal to add capability of updating legacy media.