Feat: add html content block

[Stef-Rousset]

Changelog

Added

• html block in content builder for homepage, project description and folder description.
• feature flag html_block_in_content_builder

For translators

[cl-dev-bot]

	Warnings
⚠️	The PR title contains no Jira issue key (case-sensitive)
⚠️	The branch name contains no Jira issue key (case-sensitive)

	Messages
📖	Changelog provided 🎉
📖	Run the e2e tests
📖	Check translation progress

Generated by 🚫 dangerJS against 271c8ae

[EdwinKato]

The code looks good overall. I left some minor comments but nothing blocking. I noticed we have some import order issues, you can run

cd front
npm run eslint --ext .ts,.tsx --fix \
  app/components/admin/ContentBuilder/Widgets/HtmlBlockMultiloc/index.tsx \
  'app/containers/Admin/pagesAndMenu/containers/ContentBuilder/components/Widgets/HtmlBlockMultiloc/index.tsx'

For those files to fix any issues or npm run lint --fix for the entire codebase

[Stef-Rousset]

The code looks good overall. I left some minor comments but nothing blocking. I noticed we have some import order issues, you can run

cd front
npm run eslint --ext .ts,.tsx --fix \
  app/components/admin/ContentBuilder/Widgets/HtmlBlockMultiloc/index.tsx \
  'app/containers/Admin/pagesAndMenu/containers/ContentBuilder/components/Widgets/HtmlBlockMultiloc/index.tsx'

For those files to fix any issues or npm run lint --fix for the entire codebase

Thx for the advice, I ran the command and update the files !

[EdwinKato]

Looks good

[jinjagit]

The BE code looks generally good.

I recommended some improvements in documentation (via comments &/or more tests), and I asked a couple of questions (for clarification of your intent).
I also suggested a small change in the rel sanitisation.

[jinjagit]

Nice!