Veryplaintxt: Add a line break in nav menu?

Hi:

Client has added another page, and now all of the pages don’t list nicely in the nav menu under the header.

Is there a way to add a line break so I can avoid an orphaned page title? I couldn’t figure out what to do in the theme functions.php file.

Site at https://www.provencherandflatt.com/bankruptcy/carinalli

Thx, Ned