fix(数据大屏): 新建数据大屏-添加跑马灯，鼠标焦点从输入框移动到输入框外点击确定，输入框内存在&nbsp

core/core-frontend/src/custom-component/scroll-text/Component.vue

@@ -81,14 +81,14 @@ const clearStyle = e => {
 }
 
 const handleBlur = e => {
-  element.value.propValue = e.target.innerHTML || ' '
+  element.value.propValue = e.target.innerHTML || ''
   const html = e.target.innerHTML
   if (html !== '') {
     element.value.propValue = e.target.innerHTML
   } else {
     element.value.propValue = ''
     nextTick(function () {
-      element.value.propValue = ' '
+      element.value.propValue = ''
     })
   }
   canEdit.value = false