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/customRule/customMethodCardWizard.json

@@ -11,7 +11,7 @@
     },
     "2": {
       "title": "How do you want to describe your new policy?",
-      "description": "This description will show up with the title to offer additional context about what the policy is how it should be applied.",
+      "description": "This description will show up with the title to offer additional context about what the policy is and how it should be applied.",
       "fieldPlaceholder": "Policy description"
     },
     "3": {