Fix workshop reader accessibility semantics and QA screenshot publishing (#1741)

* Initial plan

* Fix workshop docs accessibility QA handling

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

* Refine workshop accessibility and QA updates

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

* Adjust workshop page title semantics

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
Co-authored-by: Peli de Halleux <pelikhan@users.noreply.github.com>

Author: Copilot