Feature: #107358 - Introduce Fluid page title ViewHelper

Description

A new Fluid ViewHelper <f:page.title> has been introduced to allow setting the page title directly from Fluid templates.

This is especially useful for Extbase plugins that need to set a page title in their detail views without having to implement their own custom Page Title Provider.

<f:page.title>{item.title}</f:page.title>

<h1>{item.title}</h1>
<p>{item.description}</p>

The ViewHelper can also be used with static content:

<f:page.title>About Us - Company Information</f:page.title>

<h1>About Us</h1>
<p>Welcome to our company...</p>

Impact

Extension developers can now easily set page titles from their Fluid templates without needing to create custom Page Title Providers for each extension. This simplifies the implementation of dynamic page titles in Fluid templates or especially Extbase plugins for detail views where the title should reflect the displayed record.

The ViewHelper integrates seamlessly with TYPO3's existing Page Title Provider system and respects the configured provider priorities.