fix spelling and make required

Author: corwintines

.github/ISSUE_TEMPLATE/suggest_wallet.yaml

@@ -68,8 +68,10 @@ body:
   - type: textarea
     id: wallet_user_fees
     attributes:
-      label: When are the fees users may be paying for using your wallet product?
+      label: What are the fees users may be paying for using your wallet product?
       description: eg) 1% service fee for swapping, bridging functionality, flat fee for all transactions
+    validations:
+      required: true
   - type: input
     id: wallet_active_development_team
     attributes: