Feature/rework landing page emblems

[das-g]

before:

after:

[sfkeller]

The new emblems graphics is OK for me.

I just see that the buttons still don't have the same text as the menu. I'd prefer a hover text over the two emblems, and that the emblems are "clickable".

Even more, I'm wondering, if the buttons below the two emblems can't be completely omitted?

[das-g]

I just see that the buttons still don't have the same text as the menu. I'd prefer a hover text over the two emblems, [...]

Good point. Let's handle that in a separate pull request, though: #773 (hovertext only over buttons, but we I can change that)

I'd prefer a hover text over the two emblems, and that the emblems are "clickable".

Even more, I'm wondering, if the buttons below the two emblems can't be completely omitted?

Maybe the caption and the emblems should be together on a button, to indicate that the whole thing is clickable?