improve statistics

app/src/main/java/it/danieleverducci/lunatracker/adapters/LunaEventRecyclerAdapter.kt

@@ -59,7 +59,12 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
             LunaEvent.TYPE_CUSTOM -> item.notes
             else -> item.getTypeDescription(context)
         }
-        holder.time.text = DateUtils.formatTimeAgo(context, item.getEndTime())
+        val endTime = if (item.type == LunaEvent.TYPE_SLEEP) {
+            item.quantity + item.time
+        } else {
+             item.time
+        }
+        holder.time.text = DateUtils.formatTimeAgo(context, endTime)
         var quantityText = numericUtils.formatEventQuantity(item)
 
         // if the event is weight, show difference with the last one