Feature: #79622 - Header Position support for Fluid Styled Content

See Issue #79622

Description

Header position as known from CSS Styled Content is now also supported by Fluid Styled Content. This will allow the editor to have more control about the alignment of the header in the frontend.

By default all CSS classes for header alignment are prefixed with ce-headline- to make the css class unique and to allow even more adjustments without breaking your styling somewhere else.

Predefined values for header alignment and resulting CSS classes

Header positions are now available to all editors by default.