feat/override favorite group

[thdk]

• chore: use dev environment by default for webpack build
• feat: allow to override existing favorite registration group

[codecov]

Codecov Report

Merging #206 (039317c) into master (a04d243) will increase coverage by 0.42%.
The diff coverage is 75.75%.

@@            Coverage Diff             @@
##           master     #206      +/-   ##
==========================================
+ Coverage   71.32%   71.75%   +0.42%     
==========================================
  Files         239      239              
  Lines        3815     3827      +12     
  Branches      653      656       +3     
==========================================
+ Hits         2721     2746      +25     
+ Misses       1084     1070      -14     
- Partials       10       11       +1     

Impacted Files	Coverage Δ
src/containers/app/index.tsx	100.00% <ø> (ø)
src/routes/favorites/detail.tsx	36.84% <0.00%> (+2.69%)	⬆️
src/routes/registrations/detail.tsx	34.09% <ø> (ø)
src/routes/registrations/overview.tsx	46.51% <0.00%> (ø)
src/components/editable-text/index.tsx	43.75% <28.57%> (-4.25%)	⬇️
src/containers/ui/top-bar/top-bar-container.tsx	100.00% <100.00%> (ø)
src/stores/favorite-store/favorite-store.ts	98.18% <100.00%> (+31.51%)	⬆️
src/stores/user-store/user-store.ts	80.18% <0.00%> (ø)

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[thdk]

This PR should already reduce the problem mentioned in #205