Upgrade Storybook, MSW and Jest

[sergei-maertens]

... what a pain in the bum.

The MSW 1.x -> 2.x really opened Pandora's box. To be continued...

[codecov]

Codecov Report

Attention: Patch coverage is 80.79470% with 29 lines in your changes missing coverage. Please review.

Project coverage is 77.90%. Comparing base (65b168a) to head (79282ff).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
src/api-mocks/forms.js	0.00%	9 Missing ⚠️
src/customJestResolver.js	0.00%	7 Missing ⚠️
src/formio/components/FileField.mocks.js	25.00%	6 Missing ⚠️
src/api-mocks/submissions.js	81.25%	3 Missing ⚠️
src/components/EmailVerification/mocks.js	90.90%	1 Missing ⚠️
src/components/FormStep/mocks.js	88.88%	1 Missing ⚠️
src/components/LanguageSelection/mocks.js	91.66%	1 Missing ⚠️
src/components/appointments/mocks.js	97.72%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #723       +/-   ##
===========================================
+ Coverage   56.82%   77.90%   +21.08%     
===========================================
  Files         230      236        +6     
  Lines        4255     4875      +620     
  Branches      772     1333      +561     
===========================================
+ Hits         2418     3798     +1380     
+ Misses       1625     1042      -583     
+ Partials      212       35      -177     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.