Subdivided the new icons in 3 size categories. As requested by UX
Used the company naming scheme for uniformity and easy recognition.
Known issues:
- Top/Bottom category wasn't taken into account by UX at the time. Since
this is a recent addition. Both the Walls and Top/Bottom will be updated.
- Cloud/Network connection icons 12px don't render correctly. Due to the
theme-ing.
- Extruder Icons do not render correctly.
CURA-8010_new_icons
in the Feedrate color scheme. Due to the travel speed is normally very
high compared with the other speeds in the model, the gradient is now
gradual instead of linear in order to show more changes in the low
values and less changes in the high values.
Adapt also the button styles and themes' colors.
Set the play/pause button to the left and reduce the size.
