SSR issues due to enquire.js dependency

Due to the enquire.js dependency when using server side rendering the compilation gives this error

```
✓ building client + server bundles...
✖ rendering pages...
build error:
ReferenceError: window is not defined
```
enquire.js is no longer maintained. A merge request has been opened but I doubt it will be considered - [enquire pull request](https://github.com/WickyNilliams/enquire.js/pull/177).

I think there are two possibilities:
* use a fork of enquire.js like the one proposed by this [user](https://github.com/kagol/enquire.js)
* insert the code of enquire.js directly in react-slick and fix the issue