Wizard: prevent to reload Wizard on enter

In LabelInput, the Wizard requires users to press enter. Although the
hostname step does not need it, users might press enter without knowing
it is not needed, which previously trigerred a re-render. This commit
fixes the re-render.

Author: avitova

src/Components/CreateImageWizard/steps/Hostname/index.tsx

@@ -8,7 +8,12 @@ import { CustomizationLabels } from '../../../sharedComponents/CustomizationLabe
 
 const HostnameStep = () => {
   return (
-    <Form>
+    <Form
+      onSubmit={(event) => {
+        // this prevents from reloading the wizard on pressing enter
+        event.preventDefault();
+      }}
+    >
       <CustomizationLabels customization='hostname' />
       <Title headingLevel='h1' size='xl'>
         Hostname