added new icon and download button now visible (#2005)

Author: HectorRoblesWolf

app/src/main/res/drawable/ic_download_white_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M19,9h-4V3H9v6H5l7,7 7,-7zM5,18v2h14v-2H5z"/>
+</vector>

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

@@ -12,13 +12,14 @@
         android:icon="@drawable/ic_share_black_24dp"
         android:title="@string/menu_share"
         app:showAsAction="always" />
-    <item
-        android:id="@+id/menu_browser_current_image"
-        android:title="@string/menu_open_in_browser"
-        app:showAsAction="never" />
     <item
         android:id="@+id/menu_download_current_image"
+        android:icon="@drawable/ic_download_white_24dp"
         android:title="@string/menu_download"
+        app:showAsAction="always" />
+    <item
+        android:id="@+id/menu_browser_current_image"
+        android:title="@string/menu_open_in_browser"
         app:showAsAction="never" />
     <item
         android:id="@+id/menu_set_as_wallpaper"