Feature: #89650 - Allow line breaks in TCA descriptions

See Issue #89650

Description

TCA description texts are passed through nl2br() to allow line breaks which make longer description texts easier to read.

Impact

To make use of this feature simply format your description text with new lines. Those will be converted to <br> tags when creating the output. Installations that make use of TCA descriptions heavily might want to double check the formatting of those texts to avoid unwanted new lines.