Update template config for webpack react project

[pd4d10]

Issue: webpack 2+ use rules instead of loaders

What I did

Update template config for webpack react project

How to test

[codecov]

Codecov Report

Merging #1628 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1628   +/-   ##
=======================================
  Coverage   21.34%   21.34%           
=======================================
  Files         244      244           
  Lines        5378     5378           
  Branches      661      667    +6     
=======================================
  Hits         1148     1148           
- Misses       3719     3732   +13     
+ Partials      511      498   -13

Impacted Files	Coverage Δ
lib/ui/src/modules/api/actions/api.js	49.42% <0%> (ø)	⬆️
lib/ui/src/modules/ui/components/menu_item.js	19.14% <0%> (ø)	⬆️
addons/info/src/components/PropTable.js	22.36% <0%> (ø)	⬆️
addons/knobs/src/components/types/Object.js	5.81% <0%> (ø)	⬆️
app/react-native/src/preview/story_kind.js	0% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	32.98% <0%> (ø)	⬆️
.../src/manager/containers/CommentsPanel/dataStore.js	34.78% <0%> (ø)	⬆️
addons/knobs/src/components/types/Color.js	8% <0%> (ø)	⬆️
app/react-native/src/bin/storybook-start.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/routes.js	0% <0%> (ø)	⬆️
... and 11 more

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[Hypnosphi]

Note for myself: test that it works when user has webpack 1 in their app

[Hypnosphi]

Oh, I've missed the fact that it's a template.