This changeset also introduces the `.word-wrap-break-word` class which can be used to apply `word-wrap: break-word` to admin elements when needed.
Props mitogh, costdev, kapilpaul, alamgircsebd, sabernhardt, anantajitjg, afercia, circlecube, SergeyBiryukov, rafiahmedd, audrasjb.
Fixes#55393.
git-svn-id: https://develop.svn.wordpress.org/trunk@53777 602fd350-edb4-49c9-b593-d223f7449a82