configurable # of apps to show on apps#index

[johrstrom]

From discourse - https://discourse.openondemand.org/t/change-number-of-apps-displayed-for-all-apps/1621

apps#index shows a datatable that defaults to 10 items. The idea with this feature is to provide some configuration so that that datatable defaults to showing N items where N is provided by the administrator.

[abujeda]

Possible implementation for the configurable Datatable for the apps index page:
#3672