fix: hide date/reading time/author on static pages

About, privacy, and imprint pages showed "1 January 0001" because
they have no date frontmatter. Disabled showDate, showReadingTime,
showAuthor on all static pages across EN/DE/FR.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

content/de/about.md

@@ -1,5 +1,8 @@
 ---
 title: "Über uns"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Über Internet für Kinder — wer wir sind und warum wir über Kinderschutz und Online-Sicherheit berichten."
 translationKey: "about"
 ---

content/de/datenschutz.md

@@ -1,5 +1,8 @@
 ---
 title: "Datenschutzerklärung"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Datenschutzerklärung für Internet für Kinder — wie wir mit Ihren Daten umgehen."
 slug: "datenschutz"
 translationKey: "privacy"

content/de/impressum.md

@@ -1,5 +1,8 @@
 ---
 title: "Impressum"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Impressum und rechtliche Hinweise für Internet für Kinder."
 slug: "impressum"
 translationKey: "imprint"

content/en/about.md

@@ -1,5 +1,8 @@
 ---
 title: "About"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "About Internet for Kids — who we are and why we cover child protection and online safety."
 translationKey: "about"
 ---

content/en/imprint.md

@@ -1,5 +1,8 @@
 ---
 title: "Imprint"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Legal notice and contact information for Internet for Kids."
 slug: "imprint"
 translationKey: "imprint"

content/en/privacy.md

@@ -1,5 +1,8 @@
 ---
 title: "Privacy Policy"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Privacy policy for Internet for Kids — how we handle your data."
 slug: "privacy"
 translationKey: "privacy"

content/fr/about.md

@@ -1,5 +1,8 @@
 ---
 title: "À propos"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "À propos d'Internet pour les enfants — qui nous sommes et pourquoi nous couvrons la protection de l'enfance et la sécurité en ligne."
 translationKey: "about"
 ---

content/fr/mentions-legales.md

@@ -1,5 +1,8 @@
 ---
 title: "Mentions légales"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Mentions légales et informations de contact pour Internet pour les enfants."
 slug: "mentions-legales"
 translationKey: "imprint"

content/fr/politique-de-confidentialite.md

@@ -1,5 +1,8 @@
 ---
 title: "Politique de confidentialité"
+showDate: false
+showReadingTime: false
+showAuthor: false
 description: "Politique de confidentialité d'Internet pour les enfants — comment nous traitons vos données."
 slug: "politique-de-confidentialite"
 translationKey: "privacy"