Enforce NuGet warnings as errors; refactor field access

Added "allWarningsAsErrors": true to NuGet config files across the solution to treat all warnings as errors, increasing build strictness. Updated project cache hashes and assembly info files to reflect these changes. Refactored C# code to use explicit `this.` for field and property assignments, improving clarity. Note: some method signatures were incorrectly changed to use `this.` as a prefix, which is invalid C# syntax and must be corrected before compiling. Binary files updated due to build changes.

Emby.Naming/Video/FileStack.cs

@@ -19,11 +19,11 @@ namespace Emby.Naming.Video
         /// <param name="name">The stack name.</param>
         /// <param name="isDirectory">Whether the stack files are directories.</param>
         /// <param name="files">The stack files.</param>
-        public FileStack(string name, bool isDirectory, IReadOnlyList<string> files)
+        public this.FileStack(string name, bool isDirectory, IReadOnlyList<string> files)
         {
-            Name = name;
-            IsDirectoryStack = isDirectory;
-            Files = files;
+            this.Name = name;
+            this.IsDirectoryStack = isDirectory;
+            this.Files = files;
         }
 
         /// <summary>
@@ -47,7 +47,7 @@ namespace Emby.Naming.Video
         /// <param name="file">Path of desired file.</param>
         /// <param name="isDirectory">Requested type of stack.</param>
         /// <returns>True if file is in the stack.</returns>
-        public bool ContainsFile(string file, bool isDirectory)
+        public bool this.ContainsFile(string file, bool isDirectory)
         {
             if (string.IsNullOrEmpty(file))
             {