[TASK] Allow new lines for description field

As the description is a textarea, the rendering should support
lines as well.

Resolves: #79406
Releases: master, 7.6
Change-Id: I8774adb07c50aed24b3d3e94e0a0b913aedeb5a9
Reviewed-on: https://review.typo3.org/51379


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Riccardo De Contardi <erredeco@gmail.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>

typo3/sysext/backend/Resources/Private/Templates/OuterWrapContainer.html

@@ -2,7 +2,7 @@
 
 <f:if condition="{infoBoxMessage}">
 	<f:be.infobox title="{infoBoxMessageTitle}">
-		{infoBoxMessage}
+		{infoBoxMessage -> f:format.nl2br()}
 	</f:be.infobox>
 </f:if>