Investigate possible token syntax and support for XB data

Overview

🌱 [META] Support alternative renderings of prop data added for the 'full' view mode such as for search indexing or newsletters Active demonstrates a requirement to be able to use XB data in scenarios other than rendering content.
One such use case is for metatags

Proposed resolution

Create a syntax and proof of concept for token support for extracting data from component properties.

Possible syntax

[node:xb:0:title] // title prop of first component
[node:xb:filter--cards:0:title] // title prop of the first cards component

User interface changes