For #18608: Also add default browser item in new menu.

(cherry picked from commit 8f1b3e03f1)

app/src/main/java/org/mozilla/fenix/components/toolbar/DefaultToolbarMenu.kt

@@ -364,7 +364,9 @@ open class DefaultToolbarMenu(
             BrowserMenuDivider(),
             reportSiteIssuePlaceholder,
             findInPage,
+            getSetDefaultBrowserItem()?.let { BrowserMenuDivider() },
             getSetDefaultBrowserItem(),
+            getSetDefaultBrowserItem()?.let { BrowserMenuDivider() },
             addToTopSites,
             addToHomescreen.apply { visible = ::canAddToHomescreen },
             installToHomescreen.apply { visible = ::canInstall },
@@ -563,6 +565,8 @@ open class DefaultToolbarMenu(
                 extensionsItem,
                 if (tabsTrayRewrite) syncMenuItem else syncedTabsItem,
                 BrowserMenuDivider(),
+                getSetDefaultBrowserItem(),
+                getSetDefaultBrowserItem()?.let { BrowserMenuDivider() },
                 findInPageItem,
                 desktopSiteItem,
                 customizeReaderView.apply { visible = ::shouldShowReaderViewCustomization },