When you use react-create-app along with uxi, you got errors

[dervalp]

Step to reproduce:

• Install react-create-app and generate a dummy Application.
• install uxi
• try to use DataGrid

You get:

TypeError: _Flex2.default.extend is not a function

Some other components are also concerned.

It seems the way we are building webpack required some 'special' config, (which should not...)

[denisflorkin]

Yeah I'm guessign you install the latest styled-components (I just did the same) and it seems that extend is the only issue. I also have other warns in v4 of styled-components (like for the .attrs(fn helpers)).

I can see two issue here:

• I add to manually install styled-compônents when using uxi (peerDep) maybe we should just make it a direct deps with a precise version range ?

• NExt to that I'll set up a task in uxi to bring our compos to work with styled-components v4. https://github.com/uxilab/uxi/issues/72