rss收藏增加批量删除 (#4444)

app/src/main/res/menu/rss_favorites.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto">
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:ignore="AlwaysShowAction">
 
     <item
         android:id="@+id/menu_group"
@@ -11,5 +13,14 @@
         <menu />
 
     </item>
+    <item
+        android:id="@+id/menu_del_group"
+        android:title="@string/delete_select_group"
+        app:showAsAction="never" />
+
+    <item
+        android:id="@+id/menu_del_all"
+        android:title="@string/delete_all"
+        app:showAsAction="never" />
 
 </menu>