Mockup: Bugfix - Reinserted class favorites into favorites badge in soegeresultat.html

It appears it was wrongly removed in commit 3f8c9819
Mockup: Bugfix - Injecting correct title into opretAgent_user.html on load.
Mockup: Making title a placeholder instead of a value.

Not sure it would be a good idea in real life,
since an empty field would be ambiguous (the old title or an empty field?)