Refactor modal handling to use Bootstrap's JavaScript API instead of JQuery

[tlambert03]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.66%. Comparing base (b3ab2d8) to head (1c07620).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #389   +/-   ##
=======================================
  Coverage   60.66%   60.66%           
=======================================
  Files         110      110           
  Lines        8786     8786           
=======================================
  Hits         5330     5330           
  Misses       3456     3456           

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