ui-core: remove input-wrapper in inputs

[clarani]

What happened?

Inputs have wrapper of 3px, which complicates their integration. The padding should be on the label, not on the input itself.

It creates some component mismatch (here the select is bigger than the combo box for instance)

How can we reproduce it (as minimally and precisely as possible)?

1. Open STDCM view on osrd

On which environments the bug occurs?

Local Storybook

On which browser the bug occurs?

Firefox

[anisometropie]

if the component really needs a wrapper it has to be 0px