Revert "Make main menu support target attribute"

This reverts commit 05b62bfd22.

docs/en/UI/AspNetCore/Navigation-Menu.md

@@ -89,7 +89,7 @@ There are more options of a menu item (the constructor of the `ApplicationMenuIt
 * `icon` (`string`): An icon name. Free [Font Awesome](https://fontawesome.com/) icon classes are supported out of the box. Example: `fa fa-book`. You can use any CSS font icon class as long as you include the necessary CSS files to your application.
 * `order` (`int`): The order of the menu item. Default value is `1000`. Items are sorted by the adding order unless you specify an order value.
 * `customData` (`object`): A custom object that you can associate to the menu item and use it while rendering the menu item.
-* `target` (`string`): Target of the menu item. Can be `null` (default), "\_*blank*", "\_*self*", "\_*parent*", "\_*top*" or a frame name for web applications.
+* `target` (`string`): Target of the menu item. Can be `null` (default), "_blank", "_*self*", "_parent", "_*top*" or a frame name for web applications.
 * `elementId` (`string`): Can be used to render the element with a specific HTML `id` attribute.
 * `cssClass` (`string`): Additional string classes for the menu item.
 

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/Default.cshtml

@@ -11,7 +11,7 @@
         if (menuItem.Url != null)
         {
             <li class="nav-item @cssClass @disabled" @elementId>
-                <a class="nav-link" href="@url" target="@menuItem.Target">
+                <a class="nav-link" href="@url">
                     @if (menuItem.Icon != null)
                     {
                         if (menuItem.Icon.StartsWith("fa"))

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/_MenuItem.cshtml

@@ -10,7 +10,7 @@
 {
     if (Model.Url != null)
     {
-        <a class="dropdown-item @cssClass @disabled" href="@url" target="@Model.Target" @Html.Raw(elementId)>
+        <a class="dropdown-item @cssClass @disabled" href="@url" @Html.Raw(elementId)>
             @if (Model.Icon != null)
             {
                 if (Model.Icon.StartsWith("fa"))
@@ -40,5 +40,5 @@ else
                 @await Html.PartialAsync("~/Themes/Basic/Components/Menu/_MenuItem.cshtml", childMenuItem)
             }
         </div>
-    </div>
+    </div> 
 }