✨(react) add Pagination component

In order to create a DataGrid we first need a fully working pagination
component. It comes with multiples working examples in the documentation.

packages/react/src/index.scss

@@ -2,6 +2,7 @@
 @import '@openfun/cunningham-tokens/default-tokens';
 @import './components/Button';
 @import './components/Forms/Input';
+@import './components/Pagination';
 
 * {
   font-family: var(--c--theme--font--families--base);