Only use datatables on collection notes list for #3776

[sylvieed]

This (temporarily?) addresses two issues:

1. All deed & note lists were being truncated to 50 items because the .paginate call was mistakenly still being called on them.
2. If they were not being truncated, there would be major performance issues with loading a large amount of rows without pagination.

The notes list for a collection -- the focus of #3739 -- is still using DataTables & will now load all notes on a collection. I tested this with around 500 entries and had no performance issues.

Deeds lists, and notes lists without a collection, are back to using will_paginate as per usual, no DataTables, so there won't be any performance issues on long lists.