Try attaching pinch-zoom to body when FS to prevent browser pinch zoom

[cdrini]

Closes internetarchive/openlibrary#9356

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 4 lines in your changes missing coverage. Please review.

Project coverage is 69.29%. Comparing base (de2a02d) to head (650ddc9).

Files with missing lines	Patch %	Lines
src/BookReader.js	75.00%	2 Missing ⚠️
src/BookReader/ModeSmoothZoom.js	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1384      +/-   ##
==========================================
+ Coverage   69.26%   69.29%   +0.03%     
==========================================
  Files          60       60              
  Lines        5166     5179      +13     
  Branches     1110     1114       +4     
==========================================
+ Hits         3578     3589      +11     
- Misses       1558     1560       +2     
  Partials       30       30              

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