Gallery2: Add monochrome icon support

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

<!--

     SPDX-FileCopyrightText: 2022 The LineageOS Project

     SPDX-License-Identifier: Apache-2.0

-->

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

    android:width="108dp"

    android:height="108dp"

    android:viewportWidth="108"

    android:viewportHeight="108">

  <path

      android:pathData="M34,39.5L74,39.5A2.5,2.5 0,0 1,76.5 42L76.5,66A2.5,2.5 0,0 1,74 68.5L34,68.5A2.5,2.5 0,0 1,31.5 66L31.5,42A2.5,2.5 0,0 1,34 39.5z"

      android:strokeWidth="3"

      android:fillColor="#00000000"

      android:strokeColor="#ffffffff"/>

  <path

      android:pathData="M72.243,38L63.121,47.121L61,49.243L58.879,47.121L49.757,38H54L58.879,42.879L61,45L63.121,42.879L68,38H72.243Z"

      android:fillColor="#ffffffff"

      android:fillType="evenOdd"/>

  <path

      android:pathData="M78,45V66C78,68.13 76.335,69.871 74.236,69.993L63.621,59.379L78,45Z"

      android:fillColor="#ffffffff"

      android:fillType="evenOdd"/>

  <path

      android:pathData="M70,70H34C31.791,70 30,68.209 30,66V60L45,45L70,70Z"

      android:fillColor="#ffffffff"

      android:fillType="evenOdd"/>

</vector>

<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">

    <background android:drawable="@drawable/ic_launcher_background"/>

    <foreground android:drawable="@drawable/ic_launcher_foreground"/>

    <monochrome android:drawable="@drawable/ic_launcher_monochrome"/>

</adaptive-icon>