Fixed text of manage notification button for a11y is confusing

Add "manage notification" content description string for a11y.

Fixes: 127877031
Test: manual
Change-Id: I6fc84693a8d72071c2b46412e48a159dfd395dd9

packages/SystemUI/res/layout/status_bar_notification_footer.xml

@@ -33,6 +33,7 @@
             android:layout_height="wrap_content"
             android:layout_gravity="start"
             android:focusable="true"
+            android:contentDescription="@string/accessibility_manage_notification"
             android:text="@string/manage_notifications_text"
             android:textColor="?attr/wallpaperTextColor"
             android:textAllCaps="false"/>

packages/SystemUI/res/values/strings.xml

@@ -266,6 +266,8 @@
     <string name="accessibility_scanning_face">Scanning face</string>
     <!-- Click action label for accessibility for the smart reply buttons (not shown on-screen).". [CHAR LIMIT=NONE] -->
     <string name="accessibility_send_smart_reply">Send</string>
+    <!-- Content description of the manage notification button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_manage_notification">Manage notifications</string>
     <!-- Click action label for accessibility for the unlock button. [CHAR LIMIT=NONE] -->
     <string name="unlock_label">unlock</string>
     <!-- Click action label for accessibility for the phone button. [CHAR LIMIT=NONE] -->

packages/SystemUI/src/com/android/systemui/statusbar/notification/row/FooterView.java

@@ -79,6 +79,8 @@ public class FooterView extends StackScrollerDecorView {
         mDismissButton.setContentDescription(
                 mContext.getString(R.string.accessibility_clear_all));
         mManageButton.setText(R.string.manage_notifications_text);
+        mManageButton.setContentDescription(
+                mContext.getString(R.string.accessibility_manage_notification));
     }
 
     public boolean isButtonVisible() {