[Dual Shade] Add the "float portrait 2" icon for Shade Panels setting.

<!--

    Copyright (C) 2025 The Android Open Source Project

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

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

    You may obtain a copy of the License at

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

    Unless required by applicable law or agreed to in writing, software

    distributed under the License is distributed on an "AS IS" BASIS,

    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    See the License for the specific language governing permissions and

    limitations under the License.

-->

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

        android:width="24dp"

        android:height="24dp"

        android:viewportWidth="960"

        android:viewportHeight="960"

        android:tint="?android:attr/colorControlNormal"

        android:autoMirrored="true">

    <path

        android:fillColor="@android:color/white"

        android:pathData="M320,440L560,440L560,240L320,240L320,440ZM800,800Q800,833 776.5,856.5Q753,880 720,880L240,880Q207,880 183.5,856.5Q160,833 160,800L160,160Q160,127 183.5,103.5Q207,80 240,80L720,80Q753,80 776.5,103.5Q800,127 800,160L800,800ZM720,800L720,160Q720,160 720,160Q720,160 720,160L240,160Q240,160 240,160Q240,160 240,160L240,800Q240,800 240,800Q240,800 240,800L720,800Q720,800 720,800Q720,800 720,800ZM720,160Q720,160 720,160Q720,160 720,160L240,160Q240,160 240,160Q240,160 240,160L240,160Q240,160 240,160Q240,160 240,160L720,160Q720,160 720,160Q720,160 720,160Z"/>

</vector>