Change password menu name

[Abys]

I installed the plugin password.
Now, after the log in i see in the setting menu  "password".
I can see that it depends on the file / var / www / roundcube / program / localization / en_US
/ / Login page
$ labels ['welcome'] = 'Welcome to $ product';
$ labels ['username'] = 'Username';
$ labels ['password'] = 'Password';
$ labels ['server'] = 'Server';
$ labels ['username'] = 'Username';

I would like to change the "password" to "change password"
Can anyone help me? I am not a specialist in php.