Give builder fields persistent labels, treat description as optional, and validate save-progress email with a real form.

Name stays required; description is a labelled optional textarea. Email uses native validity and form submit. Drop the dead workshop link and fix a few copy errors.

Co-authored-by: Cursor <cursoragent@cursor.com>

messages/en/create/community/communitySave.json

@@ -1,6 +1,7 @@
 {
   "title": "Save your progress",
   "description": "We need your email to save your CommunityRule progress\nand make it accessible to you later.",
+  "inputLabel": "Email address",
   "placeholder": "email@domain.com",
   "characterCountTemplate": "{current}/{max}",
   "magicLinkSuccessTitle": "Check your email to log in",