fix(仪表板): 基础设置页面打开方式为当前页面时，在仪表板编辑页面使用新页面预览功能，会在当前页面打开预览

core/core-frontend/src/components/dashboard/DbToolbar.vue

@@ -139,8 +139,7 @@ const previewOuter = () => {
   }
   canvasSave(() => {
     const url = '#/preview?dvId=' + dvInfo.value.id + '&ignoreParams=true'
-    const openType = wsCache.get('open-backend') === '1' ? '_self' : '_blank'
-    const newWindow = window.open(url, openType)
+    const newWindow = window.open(url, '_blank')
     initOpenHandler(newWindow)
   })
 }