Fix Styles in general (#577)

This pull request addresses issues related to the appearance of the
project in both dark mode and normal mode. It includes various fixes to
ensure a consistent and visually appealing user experience.

Replace text highlight when underlining (I think it's ring, strange) ✅
Check hovers (shadows and color changes) in dark mode ✅
Adjust spacing parameters in all components (padding between the param
name and the input) ✅
There are icons with incorrect sizes ✅
Icon thickness ✅
In exports, if you change the name, it doesn't take effect (maybe
someone already solved it? Check) ✅
Edit node modal resposive ✅