[TLV-2026] Embed fix - HTML break - #16180

Changed pages include:

• index.html - view
• 404.html - view
• about/index.html - view
• blog/index.html - view
• calendar/index.html - view
• conduct/index.html - view
• contact/index.html - view
• devops-calendar/index.html - view
• devops-gives-back/index.html - view
• devopsdays-stands-with-ukraine/index.html - view

There are more changes not included in the list