Redirect to url when save a content

Added a parameter to specify a url to redirect when save (new or edit) a content with success
Change community track creation usability
Set default dates for a step at community track
Return to track when create tool
Change per page for track card pagination
Display top ancestor category at track card title
Fix community track tests
Define conditions to expires track list block
Validates that a track has at least one category
Merge branch 'ActionItem2919' into stable