✨(react) add clearable option to Select

Based on a feedback given from another project, we want to be able
to disable the clear feature on the select.

Resolve #60

packages/react/src/components/Forms/Select/index.mdx

@@ -75,6 +75,14 @@ By default, the select has a default width, like all inputs. But you can force i
   <Story id="components-forms-select-mono--full-width"/>
 </Canvas>
 
+## Clearable
+
+By default, the select is clearable ( the cross icon on the right is shown ). You can disable it by using the `clearable` props.
+
+<Canvas sourceState="shown">
+  <Story id="components-forms-select-mono--not-clearable"/>
+</Canvas>
+
 ## Controlled / Non Controlled
 
 Like a native select, you can use the Select component in a controlled or non controlled way. You can see the example below