feat: remove the post duplication feature (closes #10)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

locales/ui/de.ftl

@@ -267,7 +267,6 @@ editor-templateSlug = Vorlage
 editor-doNotTranslate = Nicht übersetzen
 editor-publish = Veröffentlichen
 editor-discard = Verwerfen
-editor-duplicate = Duplizieren
 editor-validate = Validieren
 editor-run = Ausführen
 editor-checkSyntax = Syntax prüfen

locales/ui/en.ftl

@@ -264,7 +264,6 @@ editor-templateSlug = Template
 editor-doNotTranslate = Do Not Translate
 editor-publish = Publish
 editor-discard = Discard
-editor-duplicate = Duplicate
 editor-validate = Validate
 editor-run = Run
 editor-checkSyntax = Check Syntax

locales/ui/es.ftl

@@ -267,7 +267,6 @@ editor-templateSlug = Plantilla
 editor-doNotTranslate = No traducir
 editor-publish = Publicar
 editor-discard = Descartar
-editor-duplicate = Duplicar
 editor-validate = Validar
 editor-run = Ejecutar
 editor-checkSyntax = Verificar sintaxis

locales/ui/fr.ftl

@@ -267,7 +267,6 @@ editor-templateSlug = Modèle
 editor-doNotTranslate = Ne pas traduire
 editor-publish = Publier
 editor-discard = Annuler les modifications
-editor-duplicate = Dupliquer
 editor-validate = Valider
 editor-run = Exécuter
 editor-checkSyntax = Vérifier la syntaxe

locales/ui/it.ftl

@@ -267,7 +267,6 @@ editor-templateSlug = Modello
 editor-doNotTranslate = Non tradurre
 editor-publish = Pubblica
 editor-discard = Scarta
-editor-duplicate = Duplica
 editor-validate = Valida
 editor-run = Esegui
 editor-checkSyntax = Controlla sintassi