fix(contributions): modification d'un H2 sur la page contribution pour la rendre plus lisible en cas de réponse très courte

[carolineBda]

Fix #5727

[github-actions]

🎉 Deployment for commit 81b92e8 :

Ingresses

• 🚀 https://code-du-travail-numerique-carolinebda-page-personnali-446czah0.ovh.fabrique.social.gouv.fr/

Docker images

• 📦 docker pull harbor.fabrique.social.gouv.fr/cdtn/code-du-travail-numerique/app:sha-81b92e8405fc5ecd1d3f71f43055975377a2e7e5

Debug

• 📕 Loki logs for namespace code-du-travail-numerique-carolinebda-page-personnali-446czah0
• 📈 Pods monitoring for namespace code-du-travail-numerique-carolinebda-page-personnali-446czah0
• 📈 Workloads monitoring for namespace code-du-travail-numerique-carolinebda-page-personnali-446czah0

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