Improve filter in tests to remove strip_tags
Improve filter in tests to remove strip_tags

The crawler-filter function supports css-selectors. So the strip_tags and trim-functions can be replaced with a more specific filter-function. The comment still needs a trim because of the twig-nl2br filter.

joseluis/pwx,joseluis/pwx,MichaelThessel/pwx,joseluis/pwx,joseluis/pwx,MichaelThessel/pwx,MichaelThessel/pwx,MichaelThessel/pwx