feat: remove array data display

[gselzer]

This PR removes _ArrayDataDisplayModel, in favor of storing all contained behavior within the DataWrapper and the ArrayDisplayModel. More particularly, the ArrayDisplayModel is now in charge of slicing the wrapper.

There may be other ways to get rid of the _ArrayDataDisplayModel that have merit, and I'm not opposed to experimentation.

[codecov]

Codecov Report

Attention: Patch coverage is 81.81818% with 26 lines in your changes missing coverage. Please review.

Project coverage is 85.19%. Comparing base (87a10a9) to head (f6ccfa7).

Files with missing lines	Patch %	Lines
src/ndv/controllers/_array_viewer.py	70.58%	15 Missing ⚠️
src/ndv/models/_array_display_model.py	85.71%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #184      +/-   ##
==========================================
+ Coverage   85.11%   85.19%   +0.07%     
==========================================
  Files          45       44       -1     
  Lines        4783     4754      -29     
==========================================
- Hits         4071     4050      -21     
+ Misses        712      704       -8     

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