[pp-2] Add the @todo and @see for Renderer:render()'s array signature typehint once the docs formatting standard is adjusted

Problem/Motivation

Followup from 🐛 Fatal error when passing NULL to Renderer::render() Active . Postponed on 🐛 Fix PHPStan arguments.count error Active .

🐛 Fatal error when passing NULL to Renderer::render() Active deprecates using RendererInterface::render() with $elements being anything other than an array, and adds the appropriate commented-out typehint, but does not add an @todo or @see.

The current suggested format for the docblock additions in this scenario is under review because it disables too many coding standards rules, but will be adjusted shortly.

Proposed resolution

Add the missing @todo and @see to RenderInterface::render()'s signature once the standard is adjusted.