Wizard: Update activation keys link text and URI

This commit updates the link on the registration step so users are
directed to the exact place where they can manage keys.

Because managing keys through the customer portal will soon become
deprecated (keys will be managed through the keys service on insights)
the text was also changed to be more general.

src/Components/CreateImageWizard/steps/registration.js

@@ -108,20 +108,17 @@ export default {
       component: componentTypes.PLAIN_TEXT,
       name: 'subscription-activation-description',
       label: (
-        <>
-          Create and manage activation keys in the&nbsp;
-          <Button
-            component="a"
-            target="_blank"
-            variant="link"
-            icon={<ExternalLinkAltIcon />}
-            iconPosition="right"
-            isInline
-            href="https://access.redhat.com/"
-          >
-            Customer Portal
-          </Button>
-        </>
+        <Button
+          component="a"
+          target="_blank"
+          variant="link"
+          icon={<ExternalLinkAltIcon />}
+          iconPosition="right"
+          isInline
+          href="https://access.redhat.com/management/activation_keys"
+        >
+          Create and manage activation keys here
+        </Button>
       ),
       condition: {
         or: [