chore: 显示全部课程类型

src/pages/learn/course.vue

@@ -120,7 +120,7 @@ export default {
           key: 'course_type',
           arrItem: [
             // { val: '1', name: this.$t('action.courseAction.mustLearn'), show: UserInfo.is_open_textbook_learning },
-            // { val: '2', name: this.$t('action.courseAction.changeLearn'), show: UserInfo.is_open_required_course },
+            { val: '2', name: this.$t('action.courseAction.changeLearn'), show: UserInfo.is_open_required_course },
             { val: '3', name: this.$t('action.courseAction.repeatLearn'), show: UserInfo.is_open_extended_course }
           ]
         }