Define standard measures in setting window

[AlexPerathoner]

Currently each tab of the settings window has the same height, but the boxes inside of them should make up to different heights. A constant size (in pixels) should be defined for each of the following:

• [ ] External offset of the boxes from each other (x, y axes)
• [ ] Internal offset of the boxes
• [ ] Offset of the elements inside the boxes
• [ ] Text size and color of primary and secondary labels
• [ ] (check if more)..

[AlexPerathoner]

Later on, another issue will be created to make the newly set constants coherent in the app itself. This one is just to define the values itself

[AlexPerathoner]

Draft

boxes - window (y)	15
boxes - window (x)	18
boxes - content (x & y)	19
boxes - boxes (x & y)	11
content - content (near)	6
content - content (far)	20
primary text	17, 5
secondary text	13, 2

[AlexPerathoner]

Not really sure if it looks better: