Increase search path for shift-click common parent

[mheiman]

Closes #10246

This fixes shift-clicking to select a range of editions in the ILE

Technical

I didn't dig deeply into the details, but it looks like a change to the HTML of the work page broke shift clicking for edition selection.

I resolved the problem by having the range selection algorithm search one more level up the DOM for the common parent of the clicked elements. I verified that this solves the problem and doesn't affect the behavior of shift-clicking other selectable types.

Testing

While logged in as a librarian, visit a work with multiple editions (e.g. https://openlibrary.org/works/OL63996W/The_Alhambra)
Click the first edition to select it.
Hold down the shift key and click an edition further down the page.

Expected behavior: All of the editions between the first and second clicks should be selected.

Stakeholders

@cdrini @mheiman

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 17.54%. Comparing base (3025f5d) to head (0da7685).
Report is 80 commits behind head on master.

Files with missing lines	Patch %	Lines
.../js/ile/utils/SelectionManager/SelectionManager.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10247      +/-   ##
==========================================
+ Coverage   17.44%   17.54%   +0.09%     
==========================================
  Files          89       88       -1     
  Lines        4792     4765      -27     
  Branches      848      845       -3     
==========================================
  Hits          836      836              
+ Misses       3436     3410      -26     
+ Partials      520      519       -1     

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