Makefile: import-interactives
Added missing interactive properties to rails model and presenter.

IM [#46210465]

The following interactive properties, (fontScale, template and exports), where not defined
in the backend, rails, model and presenter for interactives. This will require a reload of
the couchdb with `rake app:import:build_interactives`.
Interactives with a template property defined with an array are failing

IM [#46486373]
Add all the possible model attributes that can be defined in an interactive.

IM [#46561645]

An interactive can define a subset of the model attributes, e.g. modelOptions, onLoad, etc. The rails model,
interactive_model, contains all these model attributes. But, only the viewOptions where being returned by
the web/rails api.