Move archive viewer files to ArchiveFile namespace

Renamed and reorganized ArchiveViewer files into a new ArchiveFile subfolder and namespace for better code structure. Updated all relevant namespaces and references accordingly. Minor code cleanups were also applied, such as using collection initializers and default keyword.

QuickLook.Plugin/QuickLook.Plugin.ArchiveViewer/Plugin.cs

@@ -16,6 +16,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 using QuickLook.Common.Plugin;
+using QuickLook.Plugin.ArchiveViewer.ArchiveFile;
 using System;
 using System.IO;
 using System.Linq;
@@ -53,7 +54,7 @@ public class Plugin : IViewer
         //".eif",     // QQ emoji file (Compound File Binary format)
     ];
 
-    private ArchiveInfoPanel _panel;
+    private IDisposable _panel;
 
     public int Priority => -5;