feat(i18n): add missing translations for testimonials and UI elements

Add testimonial-related translations to German, French, and Portuguese:
- testimonialPrevious, testimonialNext, testimonialCase

Add missing Hero section translations to French and Portuguese:
- heroImage, backgroundImage

Add missing Table of contents translations to French and Portuguese:
- tocShowMore, tocShowLess

Add missing Contact section translations to French and Portuguese:
- contactHeaderTopic, contactBody, contactAction

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Haiku 4.5 <[email protected]>

Author: markdumay

i18n/de.yaml

@@ -188,4 +188,12 @@
 - id: contactBody
   translation: "Bitte hinterlassen Sie Ihre Kontaktdaten, damit wir uns mit Ihnen in Verbindung setzen können."
 - id: contactAction
-  translation: "Kontakt aufnehmen"
+  translation: "Kontakt aufnehmen"
+
+# Testimonial
+- id: testimonialPrevious
+  translation: "Vorheriges Testimonial"
+- id: testimonialNext
+  translation: "Nächstes Testimonial"
+- id: testimonialCase
+  translation: "Kundenfallstudie anzeigen"

i18n/fr.yaml

@@ -58,6 +58,12 @@
 - id: download
   translation: "Télécharger l'article"
 
+# Hero
+- id: backgroundImage
+  translation: "Image de fond"
+- id: heroImage
+  translation: "Image héro"
+
 # Pagination
 - id: paginationNav
   translation: "Navigation de la page"
@@ -95,6 +101,10 @@
   translation: "Voir également"
 - id: sectionMenu
   translation: "Selectionner un topic"
+- id: tocShowMore
+  translation: "Afficher {{ . }} plus"
+- id: tocShowLess
+  translation: "Afficher moins"
 
 # Sidebar
 - id: toggleSidebar
@@ -169,3 +179,19 @@
 # Nav & Tab
 - id: clickToExpand
   translation: "Cliquez pour afficher le contenu"
+
+# Contact information
+- id: contactHeaderTopic
+  translation: "Intéressé par ce sujet?"
+- id: contactBody
+  translation: "Veuillez laisser vos coordonnées afin que nous puissions vous contacter."
+- id: contactAction
+  translation: "Nous contacter"
+
+# Testimonial
+- id: testimonialPrevious
+  translation: "Témoignage précédent"
+- id: testimonialNext
+  translation: "Témoignage suivant"
+- id: testimonialCase
+  translation: "Voir l'étude de cas client"

i18n/pt-br.yaml

@@ -60,6 +60,12 @@
 - id: download
   translation: "Baixar artigo"
 
+# Hero
+- id: backgroundImage
+  translation: "Imagem de fundo"
+- id: heroImage
+  translation: "Imagem principal"
+
 # Pagination
 - id: paginationNav
   translation: "Navegação da página"
@@ -97,6 +103,10 @@
   translation: "Veja também"
 - id: sectionMenu
   translation: "Selecionar um tópico"
+- id: tocShowMore
+  translation: "Mostrar {{ . }} mais"
+- id: tocShowLess
+  translation: "Mostrar menos"
 
 # Sidebar
 - id: toggleSidebar
@@ -167,3 +177,23 @@
 # Image
 - id: image
   translation: imagem
+
+# Nav & Tab
+- id: clickToExpand
+  translation: "Clique para expandir"
+
+# Contact information
+- id: contactHeaderTopic
+  translation: "Interessado neste tópico?"
+- id: contactBody
+  translation: "Por favor, deixe seus detalhes de contato para que possamos entrar em contato com você."
+- id: contactAction
+  translation: "Entre em contato"
+
+# Testimonial
+- id: testimonialPrevious
+  translation: "Depoimento anterior"
+- id: testimonialNext
+  translation: "Próximo depoimento"
+- id: testimonialCase
+  translation: "Ver estudo de caso do cliente"