This PR allows very simple project creation. You can add a name and
description. The ID is generated for you at the moment (we'll fix this
later). Nothing else works, but the project is created successfully.
This PR adds a very rough first implementation of the look of the new
project form. *It is not final and does not work yet*.
The important part here is that the layout is roughly right (we'll
adjust spacing etc later) and that we've got all the basic elements
present.
I'll hook it up to actually work in an upcoming PR.

The missing icon, text alignment, etc, will also be solved later.