Tests by Test Type gadget - When the test type name is too large, the name in the center hole of the chart, overlaps the pie-chart

Description: When the type name is too large, the type name in the center hole of the pie-chart overlaps the chart

Steps to Reproduce:

1 - Navigate to a Project that has less than or 1000 TC's

2 - Select Project Settings and then Test Type menu

3 - Add new test types (ex: "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC")

4 - Create new Tests with the new test type or change some tests details to have the new test type

5 - Navigate to the Dashboard and configure the Tests by Test Type gadget to see the pie-chart 

6 - Hover the respective slice the the test type

Actual Result: The name of the test type displayed in the center hole of the pie chart overlaps the chart

Expected Result: By comparing the gadget with other pie-charts, if the name is too large, test type name should be displayed with "..." at the end