Allow popover to contain multiple lines

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**Is your feature request related to a problem? Please describe.**
We have a nice popover component that we use for confirmation dialogs. There are scenarios where you might want to give them a bit more context before they confirm, and thus multi-line support would be beneficial.

**Describe the solution you'd like**
Allow popovers to contain multiple lines of text.

**Describe alternatives you've considered**
As a temporary fix, we have used a modal instead but a popover would more closely match our use case.

**Additional context**
Essentially, we want to have a lightweight warning here before we allow them to override their existing certificate.

Start by locating the popover component and reviewing how it currently renders confirmation text. Check the component's existing tests or examples, then consider the work complete when a popover can display the requested warning across multiple lines without requiring a modal.

Written by the indexing model from the issue text.