Adding TODO for default presentation-structure

[skip ci]
Adding translation services specs for propertyset

This is still not in the ideal format, but by creating the specs I can
more readily shift things around.
Adding method for application usage normalization

The logic was repeated all over the place. By extracting this I have
some hope at keeping the logic the same. In fact I had missed one
instance where I should've downcased the string but didn't.
Removing internationalization test from in memory

I'm crafting a `spec/features/translation_services_spec.rb` to handle
these very things.
Shifting how the partial_prefixes are stored

I want the partial prefixes to be stored in a bit more of a basic
structure.
Adding specs for property set translations

This spec is intended to be a legible test