fix problem with spark buttons behaving weirdly

app/src/main/java/com/keylesspalace/tusky/adapter/NotificationsAdapter.java

@@ -204,7 +204,7 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
     public void updateItemWithNotify(int position, NotificationViewData notification,
                                      boolean notifyAdapter) {
         notifications.set(position, notification);
-        if (notifyAdapter) notifyDataSetChanged();
+        if (notifyAdapter) notifyItemChanged(position);
     }
 
     public void addItems(List<NotificationViewData> newNotifications) {

app/src/main/java/com/keylesspalace/tusky/adapter/TimelineAdapter.java

@@ -122,7 +122,7 @@ public class TimelineAdapter extends RecyclerView.Adapter {
 
     public void changeItem(int position, StatusViewData newData, boolean notifyAdapter) {
         statuses.set(position, newData);
-        if (notifyAdapter) notifyDataSetChanged();
+        if (notifyAdapter) notifyItemChanged(position);
     }
 
     public void clear() {

app/src/main/java/com/keylesspalace/tusky/fragment/NotificationsFragment.java

@@ -288,7 +288,7 @@ public class NotificationsFragment extends SFragment implements
 
                     notifications.setPairedItem(position, newViewData);
 
-                    adapter.updateItemWithNotify(position, newViewData, true);
+                    adapter.updateItemWithNotify(position, newViewData, false);
                 }
             }
 
@@ -325,7 +325,7 @@ public class NotificationsFragment extends SFragment implements
 
                     notifications.setPairedItem(position, newViewData);
 
-                    adapter.updateItemWithNotify(position, newViewData, true);
+                    adapter.updateItemWithNotify(position, newViewData, false);
 
                 }
             }

app/src/main/java/com/keylesspalace/tusky/fragment/TimelineFragment.java

@@ -312,7 +312,7 @@ public class TimelineFragment extends SFragment implements
                                     .setReblogged(reblog)
                                     .createStatusViewData();
                     statuses.setPairedItem(actual.second, newViewData);
-                    adapter.changeItem(actual.second, newViewData, true);
+                    adapter.changeItem(actual.second, newViewData, false);
                 }
             }
 
@@ -347,7 +347,7 @@ public class TimelineFragment extends SFragment implements
                             .setFavourited(favourite)
                             .createStatusViewData();
                     statuses.setPairedItem(actual.second, newViewData);
-                    adapter.changeItem(actual.second, newViewData, true);
+                    adapter.changeItem(actual.second, newViewData, false);
                 }
             }