[Bug][Chart] ChartSeriesItemTooltip is rendered outside the view area of the component

[filipKovachev]

Describe the bug When setting a string that is too long for the ChartSeriesItemTooltip format prop the tooltip is shown outside the view area.

To Reproduce

1. Open this example: https://stackblitz.com/edit/6kokxm-bjgpfy?file=src%2Fmain.vue
2. Hover over the last point and notice how the tooltip is outside the view are

Expected behavior The Tooltip should be shown in the view area and not that much to the right.

Reported in Ticket ID: 1657637