Add custom accessibility description for notif section headers

    <!-- Content description for accessibility: Tapping this button will dismiss all gentle notifications [CHAR LIMIT=NONE] -->

    <string name="accessibility_notification_section_header_gentle_clear_all">Clear all silent notifications</string>

    <!-- Content description for accessibility: Tapping this button will open notifications settings [CHAR LIMIT=NONE] -->

    <string name="accessibility_notification_section_header_open_settings">Open notifications settings</string>

    <!-- The text to show in the notifications shade when dnd is suppressing notifications. [CHAR LIMIT=100] -->

    <string name="dnd_suppressing_shade_text">Notifications paused by Do Not Disturb</string>

package com.android.systemui.statusbar.notification.stack;

import static androidx.core.view.accessibility.AccessibilityNodeInfoCompat.AccessibilityActionCompat.ACTION_CLICK;

import android.annotation.ColorInt;

import android.annotation.Nullable;

import android.annotation.StringRes;

import android.widget.ImageView;

import android.widget.TextView;

import androidx.core.view.ViewCompat;

import com.android.systemui.res.R;

import com.android.systemui.statusbar.notification.row.StackScrollerDecorView;

            mLabelView.setText(mLabelTextId);

        }

        mLabelView.setAccessibilityHeading(true);

        ViewCompat.replaceAccessibilityAction(

                mLabelView,

                ACTION_CLICK,

                getResources().getString(

                        R.string.accessibility_notification_section_header_open_settings),

                null

        );

    }

    @Override