[Stacked Chart] Some smaples in the topic are not 100% visible

1. Go to this topic:  https://staging.infragistics.com/products/ignite-ui-angular/angular/components/charts/types/stacked-chart
2. Observe how the lines at the ends and their value points are not entirely visible 

Expected result: Charts should be 100% visible
Actual result: Charts are partially cut

