Missing link for "here" in articles/security/enabling-security.adoc

[Michal-RST]

I've just noticed, that the article about setting up Vaadin security contains a part about component-based security configuration, but the word "here" is not linked.

Here is a related part:

aadinWebSecurityConfigurerAdapter is still available for Vaadin 23.2 users, although it’s recommended to use component-based security configuration as in SecurityConfiguration example here.