Add main icon for priority modes

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<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">

  <path

      android:pathData="M160,480v-80h320v80L160,480ZM480,880q-80,0 -153.5,-29.5T196,764l56,-56q47,44 106,68t122,24q133,0 226.5,-93.5T800,480q0,-133 -93.5,-226.5T480,160v-80q83,0 155.5,31.5t127,86q54.5,54.5 86,127T880,480q0,82 -31.5,155t-86,127.5q-54.5,54.5 -127,86T480,880Z"

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

</vector>

  <java-symbol type="string"  name="recs_notification_channel_label"/>

  <!-- Priority Modes icons -->

  <java-symbol type="drawable" name="ic_zen_priority_modes" />

  <java-symbol type="drawable" name="ic_zen_mode_type_bedtime" />

  <java-symbol type="drawable" name="ic_zen_mode_type_driving" />

  <java-symbol type="drawable" name="ic_zen_mode_type_immersive" />