i18n(fr): update UI strings

[ArmandPhilippot]

Description (required)

• Reverts i18n(fr): update Expressive Code UI strings #14477 because Lunaria expects all English strings to be translated
• Fixes a few issues with the translations:
  • missing article
  • missing space
  • mismatch with the English version (e.g. SSR)
  • mismatch with our i18n guide (e.g. front-end, recipe)
  • grammar
• Replaces some translations with more natural ones (e.g. "supprimer de l'historique" is more natural than "enlever")

[astrobot-houston]

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src/content/i18n/fr.yml	Localization changed, will be marked as complete.

Warnings reference

Icon	Description
🔄️	The source for this localization has been updated since the creation of this pull request, make sure all changes in the source have been applied.

[github-actions]

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[yanthomasdev]

LGTM!