the link under meta title, the site admin link I would like the link to open in a new tab

I created an example on the footer section. I'm able to click on the link and go into a new tab.
How can I change the code to do the same for the link under the meta title, the link that is called site admin to do the same.
I was told to create a plugin which I did and it does not work.

Please help thank you.