!1155 UI bugfix of hoc and explain-list

From: @xia_yi_fan1
Reviewed-by: @weiyanxi,@lixiaohui33,@yelihua
Signed-off-by: @yelihua

mindinsight/ui/src/components/search-select.vue

@@ -315,6 +315,7 @@ export default {
      * The logic of deselect option when multiple is true
      * @param {Object} option
      * @param {Number} index
+     * @return {Promise}
      */
     mulDeselectOption(option, index) {
       return new Promise((resolve) => {

mindinsight/ui/src/views/explain/conterfactual-interpretation.vue

@@ -764,7 +764,6 @@ export default {
 .cl-hoc .cl-hoc-con .cl-hoc-right .cl-right-con {
   height: calc(100% - 63px);
   position: relative;
-  overflow: hidden;
 }
 .cl-hoc .cl-hoc-con .cl-hoc-right .cl-right-con .img-container {
   height: calc(100% - 28px);
@@ -778,6 +777,7 @@ export default {
   width: 100%;
   margin-top: 12px;
   text-align: center;
+  line-height: 16px;
 }
 .cl-hoc .cl-hoc-con .cl-hoc-right .cl-right-footer {
   height: calc(40% - 20px);

mindinsight/ui/src/views/explain/summary-list.vue

@@ -71,7 +71,7 @@ limitations under the License.
                       @click.stop="goToSaliencyMap(scope.row)"
                       v-if="scope.row.saliency_map">
                   {{$t('explain.title')}} </span>
-                <span class="menu-item operate-btn button-disable"
+                <span class="menu-item operate-btn button-disable first-btn"
                       v-else
                       :title="$t('explain.disableSaliencyMapTip')">
                   {{$t('explain.title')}}