fix(common): consider target size when auto-position picker/modal

[ghiscoding]

• when calculating picker/modal by available position, it should (wasn't) consider targeted element. For example when a calendar picker is reposition according to attached input
• exact same change was applied to Vanilla-Calendar-Picker external dep, also remove it from unused package.json

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.8%. Comparing base (ba68019) to head (eef8e8b).

Additional details and impacted files

@@          Coverage Diff           @@
##            next   #1517    +/-   ##
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  Coverage   99.8%   99.8%            
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  Files        198     198            
  Lines      21619   21619            
  Branches    7217    6947   -270     
======================================
  Hits       21555   21555            
  Misses        64      64            

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