Update referral localization messages

Revised and added new referral-related messages in the English localization file to improve clarity and provide additional validation feedback for referral link creation.

abp_io/AbpIoLocalization/AbpIoLocalization/Base/Localization/Resources/en.json

@@ -262,11 +262,14 @@
     "LicenseBanner:CallToAction": "Please <a href=\"/my-organizations/{0}\" class=\"text-decoration-underline\">extend your license.</a>",
     "Referral.CreatorUserIdIsRequired": "Creator user ID is required.",
     "Referral.TargetEmailIsRequired": "Target email is required.",
-    "Referral.TargetEmailAlreadyExists": "A referral link for this email address already exists.",
+    "Referral.YouAlreadyHaveLinkForThisEmail": "You have already created a referral link for this email address.",
     "Referral.MaxLinkLimitExceeded": "You have reached the maximum limit of {Limit} active referral links.",
     "Referral.LinkNotFound": "Referral link not found.",
     "Referral.LinkNotFoundOrNotOwned": "Referral link not found or you don't have permission to access it.",
     "Referral.CannotDeleteUsedLink": "You cannot delete a referral link that has already been used.",
+    "Referral.CannotReferYourself": "You cannot create a referral link for your own email address.",
+    "Referral:TargetEmail": "Target Email",
+    "Referral.CannotReferSameOrganizationMember": "You cannot create a referral link for a user who is already a member of your organization.",
     "LinkCopiedToClipboard": "Link copied to clipboard",
     "AreYouSureToDeleteReferralLink": "Are you sure you want to delete this referral link?",
     "DefaultErrorMessage": "An error occurred."