Notification channel settings updates

- Show a deleted count instead of individual deleted channels
- Make the link to app settings more prominent
- Reload settings onresume

Change-Id: I4f493181194943310ba536eb2bca270cec7cafce
Fixes: 36119790
Fixes: 36191444
Test: manual

src/com/android/settings/notification/NotificationBackend.java

@@ -124,7 +124,7 @@ public class NotificationBackend {
 
     public ParceledListSlice<NotificationChannelGroup> getChannelGroups(String pkg, int uid) {
         try {
-            return sINM.getNotificationChannelGroupsForPackage(pkg, uid, true);
+            return sINM.getNotificationChannelGroupsForPackage(pkg, uid, false);
         } catch (Exception e) {
             Log.w(TAG, "Error calling NoMan", e);
             return ParceledListSlice.emptyList();
@@ -139,6 +139,15 @@ public class NotificationBackend {
         }
     }
 
+    public int getDeletedChannelCount(String pkg, int uid) {
+        try {
+            return sINM.getDeletedChannelCount(pkg, uid);
+        } catch (Exception e) {
+            Log.w(TAG, "Error calling NoMan", e);
+            return 0;
+        }
+    }
+
     static class Row {
         public String section;
     }