Summary

We currently offer the possibility to filter through Category and Post Type. As we are going to make filtering per tags a possibility (see PLANET-7857) the recommendation is that the UI reflects this as well and gives users the possibility to filter through a dropdown in the front end. The dropdown should read "All Keywords" and list every tag. We can try this for the moment, and then return to see if it would be necessary to implement a filtering system that enables more than one tag.

Requirements

•  UI should follow the same design as the rest of the filters
•  The filter should persistent through the url, same as the rest