Include opening and closing date and time on debate information card.

If debates on a participatory process last more than a day, card only shows the closing date and time. This causes some misunderstandings to participants. It would we usefull to improve participant experience that opening and closing dates and times were show on debate information card. On image, the information shown is: - Date of opening - Time of opening (taken from opening date and time) - Time of ending. This debate will start on 26/01/2019 at 00:00 and will end on 04/04/2019. but it seems that starts and ends on 26/01/2019. v.15.2