feat: Add instructor course management pages for creating, listing, and viewing course details.

frontend_management/pages/instructor/courses/index.vue

@@ -129,7 +129,7 @@
           >
             <q-tooltip>ดูรายละเอียด</q-tooltip>
           </q-btn>
-          <q-btn
+          <!-- <q-btn
             flat
             dense
             icon="edit"
@@ -137,7 +137,7 @@
             @click="navigateTo(`/instructor/courses/${course.id}/edit`)"
           >
             <q-tooltip>แก้ไข</q-tooltip>
-          </q-btn>
+          </q-btn> -->
           <q-space />
           <q-btn flat round dense icon="more_vert">
             <q-menu>