Allow network managers to change the date format for their network's catalogue page

[MichSpieler]

Feature Description

As a network manager I want to be able to set the date format for the Last updated value on a network's catalog page.

Feature Use Case

Currently catalogue pages display the Last updated value in the Canadian format (dd/mm/yyyy). This leads to confusion and a network manager has contacted Support because they were worried that the catalog was not updated correctly. It should be possible to set the network to display the date in the catalog in the US date format (mm/dd/yyyy).

[MichSpieler]

ticket reference (only accessible for PB Support staff)