fix(program): media resources cannot be displayed

src/views/bigscreen/ast/Designer.vue

@@ -280,13 +280,11 @@
     >
       <template v-if="showServerAssets">
         <grid-table :schema="assetSchema">
-          <grid-table-item>
-            <template #item>
-              <card
-                :source="item"
-                @dblclick="onChoosenAsset"
-              />
-            </template>
+          <grid-table-item v-slot="item">
+            <card
+              :source="item"
+              @dblclick="onChoosenAsset"
+            />
           </grid-table-item>
         </grid-table>
       </template>
@@ -304,22 +302,20 @@
           ref="gridTable"
           :schema="assetSchema"
         >
-          <grid-table-item>
-            <template #item>
-              <card
-                :source="item"
-                @click="onToggleGrid"
-              >
-                <el-checkbox
-                  v-model="item.selected"
-                  class="c-card__checkbox"
-                />
-                <i
-                  class="c-card__type el-icon-video-play o-icon--active u-pointer"
-                  @click.stop="onView(item)"
-                />
-              </card>
-            </template>
+          <grid-table-item v-slot="item">
+            <card
+              :source="item"
+              @click="onToggleGrid"
+            >
+              <el-checkbox
+                v-model="item.selected"
+                class="c-card__checkbox"
+              />
+              <i
+                class="c-card__type el-icon-video-play o-icon--active u-pointer"
+                @click.stop="onView(item)"
+              />
+            </card>
           </grid-table-item>
         </grid-table>
       </template>