[Boofo]

First, there are 3 of those lines that need to be changed. Second, that is not the one in the header, which is a fourth one.

In the header look for this:

<label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" id="cb_cookieuser_navbar" class="cb_cookieuser_navbar" accesskey="c" tabindex="103" /> {vb:rawphrase remember_me}</label>

and add it to that line.

Or save yourself the headache, and use this, which has the options to turn the checked boxes off or on:

https://vborg.vbsupport.ru/showthread.php?t=244573