More Scan Loop Bugfixes (#1471)

* Updated scan time for watcher to 30 seconds for non-dev. Moved ScanFolder off the Scan queue as it doesn't need to be there. Updated loggers

* Fixed jumpbar missing

* Tweaked the messaging for CoverGen

* When we return early due to nothing being done on library and series scan, make sure we kick off other tasks that need to occur.

* Fixed a foreign constraint issue on Volumes when we were adding to a new series.

* Fixed a case where when picking normalized series, capitalization differences wouldn't stack when they should.

* Reduced the logging output on dev and prod settings.

* Fixed a bug in the code that finds the highest directory from a file, where we were not checking against a normalized path.

* Cleaned up some code

* Fixed broken unit tests

API/config/appsettings.Development.json

@@ -6,10 +6,10 @@
   "Logging": {
     "LogLevel": {
       "Default": "Debug",
-      "Microsoft": "Information",
+      "Microsoft": "Error",
       "Microsoft.Hosting.Lifetime": "Error",
-      "Hangfire": "Information",
-      "Microsoft.AspNetCore.Hosting.Internal.WebHost": "Information"
+      "Hangfire": "Error",
+      "Microsoft.AspNetCore.Hosting.Internal.WebHost": "Error"
     },
     "File": {
       "Path": "config//logs/kavita.log",