Show legacy lookup only in non-prod instances

[athu-tran]

1. FAQs page > How do I search the CVE List?

As-is:

To be:
"TEST.CVE.ORG" is hidden in production

2. Yellow global search notification, search drop-down, and lookup text input box are hidden in production

As-is:

To-be:

3. Search Results page > Yellow environment data banners are hidden in production

As-is:

To-be:

4. CVE Record detail page for all states (Published, Rejected) > Yellow environment data banners are hidden in production

As-is:

To-be: