[BUGFIX] Remove hostname of menu-item before matching

Depending on its configuration, Dashboards use absolute urls, including the hostname.
For matching this hostname is being removed, always.

To be able to match dashboard URLs, the hostname of menu-item link URL is also removed, when given.

Relates: #6598

src/Menu/MenuItemMatcher.php

@@ -188,7 +188,17 @@ private function doMarkSelectedPrettyUrlsMenuItem(array $menuItems, Request $req
                 $menuItemDto->setSubItems($this->doMarkSelectedPrettyUrlsMenuItem($subItems, $request));
             }
 
-            if ($menuItemDto->getLinkUrl() === $normalizedCurrentUrl) {
+            // Remove host part from menu item link URL
+            $urlParts = parse_url($menuItemDto->getLinkUrl());
+            $linkUrlWithoutHost = $urlParts['path'];
+            if (\array_key_exists('query', $urlParts)) {
+                $linkUrlWithoutHost .= '?'.$urlParts['query'];
+            }
+            if (\array_key_exists('fragment', $urlParts)) {
+                $linkUrlWithoutHost .= '#'.$urlParts['fragment'];
+            }
+
+            if ($linkUrlWithoutHost === $normalizedCurrentUrl) {
                 $menuItemDto->setSelected(true);
 
                 return $menuItems;