[Spike - Integration] Add actual file counts to the files tab UI

[GPortas]

Overview of the Feature Request

This is part 2 of #94

Add actual file counts, that should be available via js-dataverse use case, to the files tab UI, for showing total files and pagination limits.

What kind of user is the feature intended for?

All users

What inspired the request?

• UI feature development process

What existing behavior do you want changed?

None

Any brand new behavior do you want to add to Dataverse?

Display the dataset files in the File tab of the Dataset page

Any open or closed issues related to this feature request?

• [Spike - Backend] Backend support for the dataset file tab UI #90
• [Spike - Frontend] [1/2] Create the File Tab of the Dataset page - Display data #104
• [Spike - Backend] [1/2] Create the File Tab of the Dataset page - Display data #122
• [Spike - Integration] [1/2] Create the File Tab of the Dataset page - Display data #134
• [Spike - Integration] [2/2] Create the File Tab of the Dataset page - Filters #167