Resolve "amélioration des titres de chapitres, ..."

Closes #4

See merge request pole-migrateurs/modeles/quarto-extension!4

Resolve "bandeau gauche"

Closes #3

See merge request pole-migrateurs/modeles/quarto-extension!3

Resolve "logo partenaire"

Closes #2

See merge request pole-migrateurs/modeles/quarto-extension!2

Resolve "erreur citeproctext"

Closes #1

See merge request pole-migrateurs/modeles/quarto-extension!1