As an editor I want to see a warning before creating a new Lexeme in case I am not logged in in order to not reveal my IP.
**Problem:**
The old Special:NewLexeme page showed a warning for logged out users. The new one does not. It should.
**Screenshots/mockups:**
What it looks like on the old page:
{F35327434}
**BDD**
GIVEN a logged out user
WHEN they open the Special:NewLexeme page
THEN they see a warning that their IP will be revealed
AND they can still decide to create the new Lexeme without logging in
**Message copy:**
"Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to a username, among other benefits."
**Acceptance criteria:**
[ ] non-logged-in editors are shown a warning message on the page
[ ] the warning is placed below the intro sentence at the top
**Notes:**
* We should reuse the copy from the old page.
* The links in the message should be the same links as in the old page