Modernize the site with dark-first redisign - #41

Changed pages include:

• index.html - view
• 404.html - view
• about-us.html - view
• apis.html - view
• blog.html - view
• contact-us.html - view
• contribute.html - view
• docs.html - view
• engine.html - view
• faqs.html - view

There are more changes not included in the list