fix：调整列表筛选条件宽度设置

src/business/platform/data/templaterender/templates/list.vue

@@ -1513,9 +1513,12 @@ export default {
                     modelValue: `Q^${field.name}^${querySuffix}`
                 })
             }
-            searchColumn = Object.assign(searchColumn, {
-                    itemWidth:field.item_width?field.item_width:''
+            if(field.item_width){
+                searchColumn = Object.assign(searchColumn, {
+                    itemWidth:field.item_width
                 })
+            }
+           
             return searchColumn
         },
         buildDisplayColumn (field) {