Display shared editions properly as finished/archived/upcoming

• Shared editions are not always displayed as active
• Shared editions are active if at least one sub-edition is active
• Shared editions are upcoming if all sub-editions are upcoming or if at least one sub-edition is upcoming and the others are finished/archived
• Shared editions are finished if all sub-editions are finished or if at least one sub-edition is finished and the others are archived
• Shared editions are archived if all sub-editions are archived