Scan Loop Fixes (#1572)

* Cleanup some messaging in the scan loop to be more context bearing

* Added Response Caching to Series Detail for 1 min, due to the heavy nature of the call.

* Refactored code to make it so that processing of series runs sync correctly.

Added a log to inform the user of corrupted volume from buggy code in v0.5.6.

* Moved folder watching out of experimental

* Fixed an issue where empty folders could break the scan loop

* Another fix for when dates aren't valid, the scanner wouldn't get the proper min and would throw an exception (develop)

* Implemented the ability to edit release year from the UI for a series.

* Added a unit test for some new logic

* Code smells

API/Controllers/SeriesController.cs

@@ -377,6 +377,7 @@ public class SeriesController : BaseApiController
     /// <param name="seriesId"></param>
     /// <returns></returns>
     /// <remarks>Do not rely on this API externally. May change without hesitation. </remarks>
+    [ResponseCache(Duration = 60, Location = ResponseCacheLocation.Any, VaryByQueryKeys = new [] {"seriesId"})]
     [HttpGet("series-detail")]
     public async Task<ActionResult<SeriesDetailDto>> GetSeriesDetailBreakdown(int seriesId)
     {