fix(html): modification du bouton sur le bandeau pour avoir un html valide

[carolineBda]

Fix https://github.com/orgs/SocialGouv/projects/136?pane=issue&itemId=79890808

[github-advanced-security[bot]]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.

[github-actions[bot]]

🎉 Deployment for commit 9f676278820457e767f42f2b9281a96db34491dd :

Ingresses

- 🚀 [https://code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3.ovh.fabrique.social.gouv.fr/](https://code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3.ovh.fabrique.social.gouv.fr/)

Docker images

- 📦 docker pull harbor.fabrique.social.gouv.fr/cdtn/code-du-travail-numerique/app:sha-9f676278820457e767f42f2b9281a96db34491dd

Debug

- [📕 Loki logs for namespace code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3](https://grafana-ovh.fabrique.social.gouv.fr/explore?orgId=1&left=%5B%22now-6h%22,%22now%22,%22Loki%22,%7B%22expr%22:%22%7Bnamespace%3D%5C%22code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3%5C%22%7D%22%7D%5D) - [📈 Pods monitoring for namespace code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3](https://grafana-ovh.fabrique.social.gouv.fr/d/a7df53d7-0696-4e00-821b-c56b66e5c20a/kubernetes-compute-resources-namespace-pods?orgId=1&refresh=10s&var-datasource=P5DCFC7561CCDE821&var-cluster=ovh-dev&var-namespace=code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3) - [📈 Workloads monitoring for namespace code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3](https://grafana-ovh.fabrique.social.gouv.fr/d/a164a7f0339f99e89cea5cb47e9be617V2/kubernetes-compute-resources-namespace-workloads?orgId=1&refresh=10s&var-datasource=eb239be0-0ac2-41d5-9e1a-061f951a07a3&var-cluster=ovh-dev&var-namespace=code-du-travail-numerique-carolinebda-fix-button-5hg4jqr3&var-type=deployment)