Feature: #66077 - Introduce callouts to replace content alerts

Description

In several places alerts (flash messages) were used to display context information. We introduce content info boxes and replace all occurrences where flash messages were used.

Impact

We introduced a new layout for context information and added a ViewHelper to render the markup.

Examples

Simple info box with a title. Please note that the title will always be HTML encoded by the ViewHelper

<f:be.infobox title="Message title">your box content</f:be.infobox>

All options of the ViewHelper. If you pass your message as ViewHelper argument, it will also be HTML encoded.

<f:be.infobox title="Message title" message="your box content" state="-2" iconName="check" disableIcon="TRUE" />

If you really need to output HTML in your message, use the closing variant. All children of the ViewHelper will be used as message.

<f:be.infobox title="Message title" state="-2" iconName="check" disableIcon="TRUE">
	<h1>{AlertMessage}</h1>
</f:be.infobox>