Sizes Refactoring

[osiris86]

Sorry, this is quite a big PR. While I'm quite happy with the visual of the module, it was way to big for me. When making it smaller (I tried half the default size) I had various issues where labels etc. were overlapping. This is why I started reworking a few things:

1. The labels are now organized a bit differently which is more symmetrical and works better on small sizes (see screenshot)
2. Instead of having 3 values that can be set (width, height, and line width), now only one value (size) can be set and all the other values will change based on that value.

Please see this PR as a suggestion. I'm happy to rework some stuff, if you give suggestions.