fix style fragmentSettings

app/src/main/res/layout/fragment_dashboard.xml

@@ -8,6 +8,7 @@
     <com.github.mikephil.charting.charts.PieChart
         android:id="@+id/pieChart"
         android:layout_width="match_parent"
-        android:layout_height="600dp" />
+        android:layout_height="400dp"
+        />
 
 </RelativeLayout>