Make the homepage look a bit more professional

[webbertakken]

Context

The https://game.ci homepage is the first impression people get from GameCI.

We a thousands of projects now using GameCI, I think we could do with a bit more professional look for the homepage.

Suggested solution

We need more content like a section with companies that use GameCI, a bit of an introduction and ideally a nice animation that shows that GameCI can be used in any VCS system (GitHub, GitLab, others).

Considered alternatives

We've considered hiring someone for this kind of work but our costs are already higher than the donations we get.

Additional details

There are already some planned sections and their respective placeholder components. We just need a few people to finish some of these sections.

[EliasVal]

Since I'm already a web-developer I'd be happy to work on the website :)

[EliasVal]

I'll fork #407 for this :) (or actually just locally merge it and go from there)