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
The sourceSize needs to be adjusted because this is an SVG that we don't necessarily want to stretch but just want to render directly at the correct size.
Contributes to issue CURA-7071.
