Description

As a user, I want a help text in a popover that will explain the UI,

Acceptance Criteria

1. Add the help text popover based on the UX design
2. Confirm the texts with PM/UX
3. Add popovers to explain the "Average duration" and "Success rate" columns (design is here)

Additional Details:

https://www.figma.com/file/RuEcz3C1AywqhVvKHEb16y/Pipelines-Overview-Dashboard?type=design&node-id=0-1&mode=design&t=8npVleO9ZqrAKAB4-0