Add context to import entrypoint

[MAILPOET-2389]

assets/js/src/subscribers/importExport/import.jsx

@@ -5,6 +5,7 @@ import {
 } from 'react-router-dom';
 import ScrollToTop from 'common/scroll_to_top.jsx';
 
+import { GlobalContext, useGlobalContextValue } from 'context/index.jsx';
 import StepMethodSelection from './import/step_method_selection.jsx';
 import StepInputValidation from './import/step_input_validation.jsx';
 import StepDataManipulation from './import/step_data_manipulation.jsx';
@@ -17,7 +18,9 @@ const subscribersLimitForValidation = 200;
 const ImportSubscribers = () => {
   const [stepMethodSelectionData, setStepMethodSelectionData] = useState(undefined);
   const [stepDataManipulationData, setStepDataManipulationData] = useState({});
+  const contextValue = useGlobalContextValue(window);
   return (
+    <GlobalContext.Provider value={contextValue}>
       <HashRouter>
         <ScrollToTop>
           <Switch>
@@ -73,6 +76,7 @@ const ImportSubscribers = () => {
           </Switch>
         </ScrollToTop>
       </HashRouter>
+    </GlobalContext.Provider>
   );
 };