v0.6.1 Hotfix RC (#1635)

* Swapped out SQLite for Memory, but the one from hangfire. Added DisableConcurrentExecution on ProcessChange to avoid duplication when multiple threads execute at once.

* Fixed the Hangfire SQL issues with CPU/ram utilization some users are facing

* Fixed a case in SharpCompress fallback where an invalid ComicInfo wasn't picked up.

* When parsing epubs, if there is a volume in the epub title, try to parse and group. This is beneficial for Light Novels which are generally tagged this way.

* Fixed delete series in series detail not triggering

* Fixed some parsing logic for how we treat specials, like Annual and Omnibus.

* When scanning files, if the file is the cover image (loose leaf image), we reject it more quickly than previously.

* Added a potential bug marker

* Fixed a bug where Info was only showing Error level loggers

* Code smells

API.Tests/Services/DirectoryServiceTests.cs

@@ -603,7 +603,7 @@ public class DirectoryServiceTests
         var ds = new DirectoryService(Substitute.For<ILogger<DirectoryService>>(), fileSystem);
         ds.CopyFilesToDirectory(new []{MockUnixSupport.Path($"{testDirectory}file.zip")}, "/manga/output/", new [] {"01"});
         var outputFiles = ds.GetFiles("/manga/output/").Select(API.Services.Tasks.Scanner.Parser.Parser.NormalizePath).ToList();
-        Assert.Equal(1, outputFiles.Count()); // we have 2 already there and 2 copies
+        Assert.Single(outputFiles);
         // For some reason, this has C:/ on directory even though everything is emulated (System.IO.Abstractions issue, not changing)
         // https://github.com/TestableIO/System.IO.Abstractions/issues/831
         Assert.True(outputFiles.Contains(API.Services.Tasks.Scanner.Parser.Parser.NormalizePath("/manga/output/01.zip"))