As we are doing for all other Page/Post Types (Story, PRs, etc), when users click on "Campaign" Page Type they should access a page aggregating all Campaigns, properly styled.

For now (in PLANET-4362) we are fixing the bug by adding a redirection to a refined Search results page (e.g. https://www.greenpeace.org/international/story/ ) but for the future, the /Campaign/ page type should be styled. Ideally differently form Post types (Story, PR etc). 

Tasks

• Design the "Campaign" page type (maybe along the same line of the "Special" search results of PLANET-4375 ?) for all screens 
• Create a Dev task to remove redirects implemented in PLANET-4362 and apply this design 
• Created a Dev Task to explore "Campaigns" string and description customiser 

cc wmorrisj gabor.galgocz