Use default feature versions

Author: breezewish

Makefile

@@ -46,4 +46,4 @@ endif
 	go build -o bin/tidb-dashboard -ldflags '$(LDFLAGS)' -tags "${BUILD_TAGS}" cmd/tidb-dashboard/main.go
 
 run:
-	bin/tidb-dashboard --debug --experimental
+	bin/tidb-dashboard --debug --experimental --feature-version "6.0.0"

ui/dashboardApp/layout/signin/index.tsx

@@ -190,7 +190,11 @@ function useSignInSubmit(
           const errComp = (
             <>
               {errMsg}
-              <a href={t('signin.message.access_doc_link')}>
+              <a
+                href={t('signin.message.access_doc_link')}
+                target="_blank"
+                rel="noopener noreferrer"
+              >
                 {t('signin.message.access_doc')}
               </a>
             </>