UI XAI / Update tip of tag, optimize sentence format

mindinsight/ui/src/locales/en-us.json

@@ -845,7 +845,7 @@
     "forecastTagPosibility": "Prediction Tag (Probability)",
     "tag": "Tag",
     "filterImg": "Filter Image",
-    "tagTip": "Query image data that contains any filter tag",
+    "tagTip": "Query image data that contains any filter tag (Only tags with data are displayed)",
     "typeTip": "Query image data that contains any prediction type",
     "labelTip": "Only tags with data are displayed",
     "confidence": "Probability",

mindinsight/ui/src/locales/zh-cn.json

@@ -841,7 +841,7 @@
     "forecastTagPosibility": "预测标签 (概率)",
     "tag": "标签",
     "filterImg": "图片筛选",
-    "tagTip": "查询包含任一筛选标签的图片数据",
+    "tagTip": "查询包含任一筛选标签的图片数据（仅显示有数据的标签）",
     "typeTip": "查询包含任一预测类型的图片数据",
     "labelTip": "仅显示有数据的标签",
     "confidence": "概率",

mindinsight/ui/src/views/explain/saliency-map.vue

@@ -70,9 +70,6 @@ limitations under the License.
           <div slot="content"
                class="saliency-tooltip-container">
             {{ $t('explain.tagTip') }}
-            {{ $t('symbols.leftbracket') }}
-            {{ $t('explain.labelTip') }}
-            {{ $t('symbols.rightbracket') }}
           </div>
           <i class="el-icon-info"></i>
         </el-tooltip>