Fix back icon when opening screens from home

app/src/main/res/layout/episodes_list_fragment.xml

@@ -2,6 +2,7 @@
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
@@ -12,7 +13,8 @@
         android:layout_height="wrap_content"
         android:layout_alignParentTop="true"
         android:minHeight="?attr/actionBarSize"
-        android:theme="?attr/actionBarTheme" />
+        android:theme="?attr/actionBarTheme"
+        app:navigationIcon="?homeAsUpIndicator" />
 
     <TextView
         android:id="@+id/txtvInformation"