New issues to top of backlog

When a new JIRA issue is created (particularly Stories and Bugs), it should appear at the top of the Rapid Board Plan Backlog, so that it's more likely to be seen by project planners.

The current design is as follows:

• If a user adds a new ticket from a view other than the board, then the new ticket is added to the bottom of the backlog. We can confirm the same by creating the ticket and then navigating to the backlog.
• If a user is on the board and creates a new ticket, the new ticket will automatically appear underneath whichever ticket is currently selected.
• If no ticket is selected on the board and a new ticket is added that ticket will appear at the top of the backlog.