Fixed: UI not updating on upgrade

(cherry picked from commit d566c1efd42f9a94c524db311e8fa99bc6e0323f)

src/Readarr.Http/Extensions/RequestExtensions.cs

@@ -193,6 +193,7 @@ namespace Readarr.Http.Extensions
 
         public static void DisableCache(this IHeaderDictionary headers)
         {
+            headers.Remove("Last-Modified");
             headers["Cache-Control"] = "no-cache, no-store";
             headers["Expires"] = "-1";
             headers["Pragma"] = "no-cache";