LP1849372 Close all open dialogs on Angular route change

LP1849372 Close all open dialogs on Angular route change

On all angular route changes, force close any open dialogs, since it
makes little sense for them to persist across interfaces.

To test:

[1] Navigate to Server Administration
[2] Navigate to Age Hold Protection Rule Configuration
[3] Double-click a grid row to open an edit dialog
[4] Click browser back button to return to the Server Admin page
[5] Confirm edit dialog closes once the navigation is complete.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>