Update donation button text to complete the donation process

Update the Arabic and English text of the donation confirmation button to "إتمام عملية التبرع" and "Complete Donation" respectively, by modifying the `translations.ts` file.

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artifacts/ehsan-poc/src/lib/i18n/translations.ts

@@ -342,7 +342,7 @@ export const en = {
     donorPhone: "Phone Number",
     donorEmail: "Email (Optional)",
     amount: "Donation Amount",
-    confirmDonation: "Confirm Donation",
+    confirmDonation: "Complete Donation",
     successMessage: "Thank you for your donation. May Allah reward you.",
     caseNotFound: "Case not found or no longer available.",
     stepDetails: "Details",
@@ -791,7 +791,7 @@ export const ar = {
     donorPhone: "رقم الجوال",
     donorEmail: "البريد الإلكتروني (اختياري)",
     amount: "مبلغ التبرع",
-    confirmDonation: "تأكيد التبرع",
+    confirmDonation: "إتمام عملية التبرع",
     successMessage: "شكراً لتبرعك. جزاك الله خيراً.",
     caseNotFound: "الحالة غير موجودة أو لم تعد متاحة.",
     stepDetails: "التفاصيل",