fix: course and org landing page improvements (#468)

* make gift section HTML rendered

* hide classroomio branding on landing page

* improve section expanding

* feat: toggle show sections on course landing page

* fix: show discount on landing page course card

apps/dashboard/src/lib/utils/translations/vi.json

@@ -395,7 +395,7 @@
           }
         },
         "course_content": "Nội dung khóa học",
-        "modules": "Mô-đun",
+        "modules": "mô-đun",
         "lessons": "bài học",
         "exercises": "bài tập"
       },
@@ -1430,4 +1430,4 @@
     "no": "KHÔNG",
     "yes": "Đúng"
   }
-}
+}