Feature: #84798 - Add SEO fields to Pages TCA
See forge#84798
Description
A new system extension called SEO is introduced.
This extension adds SEO fields to Pages TCA. When this extension is
installed, a new tab SEO appears in the Page module which contains SEO related metadata.
Other non-SEO metadata is still on the Metadata tab.
Impact
Integrators can add both Open Graph and Twitter Card metadata for each page.
New fields added to Pages table:
seo_title no_index no_follow og_title og_description og_image twitter_title twitter_description twitter_image