I can't believe it's more fixes! (#863)

* Send stack trace to the UI on prod mode

* Pdfs will now generate cover images. I missed something a few releases ago.

* Ignore @Recently-Snapshot directories for QNAP.

* Refactored Bitmap code to use ImageSharp so it's truly cross platform.

* Updated pdf extraction to use a multi-threaded approach to greatly speed up pdf image extraction

* Hooked in Characters tag from ComicInfo.xml

API/Parser/Parser.cs

@@ -1097,7 +1097,7 @@ namespace API.Parser
 
         public static bool HasBlacklistedFolderInPath(string path)
         {
-            return path.Contains("__MACOSX");
+            return path.Contains("__MACOSX") || path.StartsWith("@Recently-Snapshot");
         }