Summary: Removed WELCOME15 discount code details

Why It Matters: The website removed specific details about a new customer discount.

What Changed:

• Removed the "15€ für Neukunden - Code: WELCOME15Details" section.
• Removed the detailed terms and conditions for the "WELCOME15" discount code.
• Removed the "Individuelle Einstellungen" and "Datenschutzeinstellungen" sections.
• Added new categories under "Weitere Kategorien" like "Adventskalender 2025" and "Black Friday 2025".
• Updated the list of "Weitere Marken" to include new brands and remove others.
• Added a new section "UNSERE VORTEILE" with details on free shipping, returns, and CO₂-neutral shipping.
• Updated the "Hilfe & Kontakt" section with new links and a "Häufige Fragen" section.