Add decorate to globals

Author: frankieroberto

app/globals.js

@@ -1,5 +1,7 @@
 import _ from 'lodash'
 
+import { decorate } from 'nhsuk-decorated-components'
+
 import { healthQuestions } from './datasets/health-questions.js'
 import {
   InstructionOutcome,
@@ -23,6 +25,8 @@ import {
 export default () => {
   const globals = {}
 
+  globals.decorate = decorate
+
   /**
    * Get boolean form field items
    *