feat: review backend and frontend

- update to the latest version of Java/SpringBoot
- update to the latest version NuxtJS
- add account/password update
- add account creation
- add account password reset
- add bundle to regroup questions and add default questions on user creation
- add bundle creation

frontend/public/images/favicon.svg

@@ -0,0 +1 @@
+<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><circle cx="8" cy="8" r="8" fill="#fff"/><path d="M8.6 7.3h2.9c-.2-1.5-1.4-2.7-2.9-2.9v2.9z" fill="#7e91f1"/><path d="M14.5 8.7H8.6v5.9c3.1-.3 5.6-2.8 5.9-5.9z" fill="#22b9a6"/><path d="M7.1 7.3V1.6c-3 .3-5.3 2.7-5.7 5.7h5.7z" fill="#f39345"/><path d="M7.1 8.7H2.8c.2 2.3 2 4.1 4.3 4.3V8.7z" fill="#ca8ae8"/></svg>