Improve layout in "Tools Section"

[Ynng]

Intention:

• Add margin between text-blocks
• Add margin to the bottom so we don't enter the footer too early
• Add maximum width of some sort to improve layout on ultra-wide

Don't worry about mobile for now, that is #3

Why is it necessary:

The amount of time/space allocated for each heading is too little.
As the user scrolls down, the image on the right fades too quickly.

The image also stops being sticky too early, before the last heading is even in the middle of the screen.

This is what it looks like right now.