Align with NuGet.org's session duration

Author: joelverhagen

src/Website/Startup.cs

@@ -69,8 +69,8 @@ await context
                 },
                 options =>
                 {
-                    options.ExpireTimeSpan = TimeSpan.FromHours(1);
-                    options.SlidingExpiration = false;
+                    options.ExpireTimeSpan = TimeSpan.FromHours(6);
+                    options.SlidingExpiration = true;
                     options.AccessDeniedPath = "/Home/AccessDenied";
                 });