fix: trim extra spaces in objective form

[arturlg]

Closes #1831

[github-actions]

🎉 Deployment for commit 84e2f38 :

Ingresses

• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/api(/|$)(.*)
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/api/auth(/|$)(.*)
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/dgt-export-representation.xlsx
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/dgt-representation.xlsx
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/dgt.xlsx
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/full.ndjson
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/index-egalite-fh.xlsx
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/index-egapro/recherche(/|$)(.*)
• 🚀 https://egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/indexes.csv
• 🚀 https://maildev-egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/
• 🚀 https://pgweb-egapro-fix-no-whitespace-in-objective-4x17hk14.dev.fabrique.social.gouv.fr/

Docker images

• 📦 docker pull ghcr.io/socialgouv/docker/nginx:7.0.1
• 📦 docker pull harbor.fabrique.social.gouv.fr/egapro/egapro/api:sha-84e2f385766a0a0bf461e5d21b706e95760c27c0
• 📦 docker pull harbor.fabrique.social.gouv.fr/egapro/egapro/app:sha-84e2f385766a0a0bf461e5d21b706e95760c27c0
• 📦 docker pull maildev/maildev:2.1.0
• 📦 docker pull sosedoff/pgweb:0.14.1

Debug

• 📕 Loki logs for namespace egapro-fix-no-whitespace-in-objective-4x17hk14
• 📈 Pods monitoring for namespace egapro-fix-no-whitespace-in-objective-4x17hk14
• 📈 Workloads monitoring for namespace egapro-fix-no-whitespace-in-objective-4x17hk14

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