Add margin to popup project modal image

[Arlodotexe]

The new project modal introduced in #64 could use a small style improvement that would improve the feel by quite a bit.

This is a simple 15px margin around the image, so it should be easy. It could also be padding on the box itself to make the whole thing (text included) align properly,

Before

After:

[FireCubeStudios]

because this is issue #69 (nice) I can do this.