Misc Fixes and Changes (#927)

* Cleaned up a ton of warnings/suggestions from the IDE.

* Fixed a bug when clearing the filters some presets could be undone.

* Renamed a class in the OPDS spec

* Simplified logic for when Fit To Screen rendering logic occurs. It now works always rather than only on cover images.

* Give some additional info to the user on what the differences between Library Types are

* Don't scan .qpkg folders (QNAP devices)

* Refactored some code to enable ability to test CoverImage Test. This is a broken test, test.zip is waiting on an issue in NetVips.

* Fixed an issue where Extra might get flagged as special too early, if in a word like Extraordinary

* Cleaned up the regex for the extra issue to be more flexible

API.Tests/Parser/MangaParserTests.cs

@@ -278,6 +278,8 @@ namespace API.Tests.Parser
         [InlineData("Yuki Merry - 4-Komga Anthology", false)]
         [InlineData("Beastars - SP01", false)]
         [InlineData("Beastars SP01", false)]
+        [InlineData("The League of Extraordinary Gentlemen", false)]
+        [InlineData("The League of Extra-ordinary Gentlemen", false)]
         public void ParseMangaSpecialTest(string input, bool expected)
         {
             Assert.Equal(expected,  !string.IsNullOrEmpty(API.Parser.Parser.ParseMangaSpecial(input)));