feat: Add course detail page and comprehensive English and Thai internationalization.

Frontend-Learner/i18n/locales/en.json

@@ -83,7 +83,8 @@
     "successTitle": "Enrollment Successful!",
     "successDesc": "You have successfully enrolled in this course.",
     "startNow": "Start Learning",
-    "later": "Later"
+    "later": "Later",
+    "alreadyEnrolledHint": "You have already enrolled in the course {course}."
   },
   "certificate": {
     "title": "Certificate of Completion",
@@ -167,6 +168,7 @@
     "newBadge": "New",
     "popularBadge": "Popular",
     "save": "Save",
+    "ok": "OK",
     "close": "Close",
     "cancel": "Cancel",
     "required": "This field is required",

Frontend-Learner/i18n/locales/th.json

@@ -83,7 +83,8 @@
     "successTitle": "ลงทะเบียนสำเร็จ!",
     "successDesc": "คุณได้ลงทะเบียนคอร์สนี้เรียบร้อยแล้ว",
     "startNow": "เริ่มเรียนทันที",
-    "later": "ไว้ทีหลัง"
+    "later": "ไว้ทีหลัง",
+    "alreadyEnrolledHint": "ท่านเคยลงทะเบียนคอร์ส {course} นี้ไปเรียบร้อยแล้ว"
   },
   "certificate": {
     "title": "ใบประกาศนียบัตรจบหลักสูตร",
@@ -167,6 +168,7 @@
     "newBadge": "ใหม่",
     "popularBadge": "ยอดนิยม",
     "save": "บันทึก",
+    "ok": "ตกลง",
     "close": "ปิด",
     "cancel": "ยกเลิก",
     "required": "กรุณากรอกข้อมูล",