🔖(major) release 3.0.0

Added:
- 📄(legal) Require contributors to sign a DCO

Changed:
- ♻️(frontend) Integrate UI kit
- 🏗️(y-provider) manage auth in y-provider app

Fixed:
- 🐛(backend) compute ancestor_links in get_abilities
  if needed
- 🔒️(back) restrict access to document accesses

src/mail/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mail_mjml",
-  "version": "2.6.0",
+  "version": "3.0.0",
   "description": "An util to generate html and text django's templates from mjml templates",
   "type": "module",
   "dependencies": {