Enhance landing page layout

Feature request

🚀 Suggest ideas for new website features!

Checklist

• This issue is not a duplicate, I've searched the Issue Tracker
• This issue is not a question, I'm aware that I can submit questions via Mastodon, Twitter, Email, Reddit or Matrix
• This issue is a feature request, and not a bug report, content request, or anything other

What are you missing or what could be improved?

Landing page:

1. is visually not appealing
2. has a blurry mission statement
3. misses key elements: contribution button, social media links, etc.
4. doesn't facilitate access to website chapters

What is the solution you'd like to see?

1. improve and harmonize layout & graphical elements with the rest of the website
2. sharpen the mission statement
3. add key elements: contribution button, social media links, etc.
4. facilitate access to website chapters

Do you have additional comments?

N/A