move to jsbundling from webpacker

[lodewiges]

this PR updates the js pipeline to rails 7 standard instead of using webpacker (rails 6)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.13%. Comparing base (e6dc266) to head (1da8bb0).
Report is 1 commits behind head on staging.

Additional details and impacted files

@@           Coverage Diff            @@
##           staging    #1066   +/-   ##
========================================
  Coverage    75.13%   75.13%           
========================================
  Files           53       53           
  Lines         1102     1102           
========================================
  Hits           828      828           
  Misses         274      274           

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