Landing page style tweak

[UnicornDevCraft]

Hi @benjaoming and @thibaudcolas,

Regarding the landing page:

1. I didn’t touch the navbar (though I feel a transparent one could give more space).
2. The content remains inside a container.
3. I used a 550px breakpoint for font size, let me know if that feels unnecessary.

Please let me know if this works for you or if you’d like further adjustments.

On intro.html from PR #54:
If the illustrations and “cubic waves” are approved, I can draft the intro section. Just a note: keeping it inside the container won’t look quite the same.

On the table from PR #72:
@benjaoming, I saw you had follow-up ideas for small visual improvements - happy to work on those together.

[benjaoming]

Thanks so much @UnicornDevCraft - I will have a look at this in the coming 2-3 days. I'm currently busy with a Friday deadline and a tight weekend, but I will certainly try to get this without obstructions (as always, focusing on over-all improvements and just looking for obvious bugs)

[benjaoming]

Tested in different viewports, and this works incredibly well and much better than before! Love that the illustration gets its well-deserved spotlight.

I made it show again as background on the other pages, and I think that also works equally well still.

THANKS @UnicornDevCraft for the amazing craft!