Use the accent color for search icon in homepage

<?xml version="1.0" encoding="utf-8"?>

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<vector xmlns:android="http://schemas.android.com/apk/res/android"

        android:width="24dp"

        android:height="24dp"

        android:viewportWidth="24"

        android:viewportHeight="24"

        android:tint="?android:attr/colorAccent">

    <path

        android:fillColor="#FF000000"

        android:pathData="M20.49,19l-5.73,-5.73C15.53,12.2 16,10.91 16,9.5C16,5.91 13.09,3 9.5,3S3,5.91 3,9.5C3,13.09 5.91,16 9.5,16c1.41,0 2.7,-0.47 3.77,-1.24L19,20.49L20.49,19zM5,9.5C5,7.01 7.01,5 9.5,5S14,7.01 14,9.5S11.99,14 9.5,14S5,11.99 5,9.5z"/>

</vector>

        android:layout_height="@dimen/search_bar_height"

        android:background="?android:attr/selectableItemBackground"

        android:contentInsetStartWithNavigation="@dimen/search_bar_content_inset"

        android:navigationIcon="@drawable/ic_search_24dp">

        android:navigationIcon="@drawable/ic_homepage_search">

        <TextView

            android:id="@+id/search_action_bar_title"

            style="@style/TextAppearance.SearchBar"