Bug Fix: IsProtected not removing Delete button

An error in the Boolean logic for `IsProtected` results in the `Delete` button not being removed for protected topics. This is fixed by updating the Boolean logic.

Author: JeremyCaney

OnTopic.Editor.AspNetCore/Areas/Editor/Views/Shared/_Toolbar.cshtml

@@ -44,7 +44,7 @@
     <!-- /Export -->
 
     <!-- Delete -->
-    @if (!Model.IsNew && !Model.ContentTypeDescriptor.DisableDelete || Model.Topic.IsProtected) {
+    @if (!Model.IsNew && !Model.ContentTypeDescriptor.DisableDelete && !Model.Topic.IsProtected) {
       <a
         id                      ="DeletePageButton"
         data-title              ="@Model.Topic.Title?.Replace("\"", "&quot;")"