Update markdown

[abdounikarim]

Hello,

I remove the Markdown class which was used to convert markdown to html.
I used the markdown_to_html filter instead.

I run the tests after and hey still works.

[javiereguiluz]

I like this! Thanks @abdounikarim.

However, we need to revert the changes related to tgalopin/html-sanitizer-bundle because we want to keep that bundle and its features. Thanks!

[javiereguiluz]

I see now why you removed the HTML sanitizer bundle ... but instead of that ... we may add a new Twig filter to do this -> ... | sanitize_html I don't know which could be the best option here ... maybe @tgalopin can suggest us something. Thanks!

[javiereguiluz]

After talking with Titouan, he told me that the Sanitizer bundle already provides a sanitize_html Twig filter ... so we may try to do the following:

• Reinstall and reenable the HtmlSanitizer bundle as before
• Tweak the needed Twig templates to add the |sanitize_html filter after the Markdown filter

[abdounikarim]

After talking with Titouan, he told me that the Sanitizer bundle already provides a sanitize_html Twig filter ... so we may try to do the following:

• Reinstall and reenable the HtmlSanitizer bundle as before
• Tweak the needed Twig templates to add the |sanitize_html filter after the Markdown filter

@javiereguiluz done

[javiereguiluz]

Thanks for this contribution Karim!