<!-- Please search existing work items before filing to avoid duplicates. --> ## Description league/commonmark is used at least in ai_chatbot module for converting markdown back to HTML. It was always an optional dependency, but there are a lot of support tickets as users do not see the message about possibility to install this package and benefit from it. Recently, ai_search also created a [feature](https://git.drupalcode.org/project/ai_search/-/work_items/3584018) that relies on this library. More and more markdown parsing is used, so it is nice to have it already in codebase always. ## Tasks <!-- List the concrete implementation steps — the what, not the why (that belongs in Description above). Each item should be independently completable and verifiable. Check items off as work progresses. --> * [ ] Add league/commonmark as dependency in composer.json * [ ] Remove it from suggest section * [ ] Remove the warning message that chatbot displays about markdown to html conversion. ## Acceptance criteria * league/commonmark is in the codebase ## Testing instructions *(added by implementor before review)* 1. Install fresh ai 2. Add a chatbot 3. Check that it returns results in HTML format