[website] fixes and new contents

[marwin89]

What does this PR do?

• Updates and improves website
• added news section, contributors section, used by section, drafts
• fixed issues with mobile view
• formating paragraphs
• rearranged headline-tags
• app support details improved
• updated navbar

Closes Issue(s)

None specific Issue

Motivation

• Improve usability and content of website
• improve SEO a little bit
• fix some css style issues

[Baklap4]

Will take a look somewhere tomorrow thanks for the PR :)

[marwin89]

👋

1. Yes @Baklap4 , I guess it's better to hide these sections until we have actual content.
2. I'm fine with both: one-pager or splited - just don't have the time and knowledge right now
3. In the second commit I've added Logos in used-by and reduced redundant html-tags.
4. just not sure if I really fixed the mobile view problem - can't test it properly in my browser - glad if anyone can help? (maybe a new issue?)

[marwin89]

Hi @Baklap4 , @bohning @rakuri255,

• the second commit of this pull request contains many important updates, improvements and fixes. See screeshots below. Please review, so I can merge.
• The discussion about onepager or splitting the page is a topic for another pull-req.

Changes:

• better table layout, comments for tables, responsive tables for mobile view ❗
• better navigation (spec dropdown) ❗
• Make use of header carroussell (2nd entry)
• Important spec info correction (thanks to bohning) ❗
• mobile view navbar fixes ❗
• redesign of about section
• images for news entries
• improved footer

[Baklap4]

Thanks again for the update @marwin89 looking great!