fix: 活动管理 在市场选择项后添加冒号以改善用户界面

src/views/activityManage/activity.vue

@@ -92,7 +92,7 @@
             </el-radio-group>
         </div>
         <div class="add-item" v-show="addForm.businessBelong === '活动归属地'">
-            <el-text size="large">{{ t('common_add.market') }}</el-text>
+            <el-text size="large">{{ t('common_add.market') }}：</el-text>
             <el-cascader v-model="addForm.area" :options="marketOptions" :placeholder="t('common_add.marketPlaceholder')" clearable
                 style="width: 12vw" />
         </div>