[Expressive design] Update PreferenceCategory layout

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

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  Licensed under the Apache License, Version 2.0 (the "License");

  you may not use this file except in compliance with the License.

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       http://www.apache.org/licenses/LICENSE-2.0

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<LinearLayout

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

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"

    android:paddingStart="?android:attr/listPreferredItemPaddingStart"

    android:paddingRight="?android:attr/listPreferredItemPaddingRight"

    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"

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

    android:baselineAligned="false"

    android:layout_marginTop="@dimen/settingslib_expressive_space_small1"

    android:gravity="center_vertical"

    android:filterTouchesWhenObscured="false">

    <TextView

        android:id="@android:id/title"

        android:paddingStart="@dimen/settingslib_expressive_space_extrasmall4"

        android:paddingTop="@dimen/settingslib_expressive_space_extrasmall4"

        android:paddingBottom="@dimen/settingslib_expressive_space_extrasmall4"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_gravity="start"

        android:textAlignment="viewStart"

        style="@style/PreferenceCategoryTitleTextStyle"/>

</LinearLayout>

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    </style>

    </style>

    <style name="SettingsLibPreference.Category.Expressive">

    <style name="SettingsLibPreference.Category.Expressive">

        <item name="layout">@layout/settingslib_expressive_preference_category</item>

    </style>

    </style>

    <style name="SettingsLibPreference.CheckBoxPreference.Expressive">

    <style name="SettingsLibPreference.CheckBoxPreference.Expressive">