Update webpack from 3.6.0 to 3.7.1 in app/react-native

[dependencies]

webpack has been updated to 3.7.1 in app/react-native by dependencies.io

3.7.1

Bugfixes

• fix crash for undefined optional in ExternalModule (STRML)

3.7.0

Features

• Static analysis can now concat string with .concat (loganfsmyth)
• add ContextExclusionPlugin to exclude files in a context (timse)
• add deepChildren flag to CommonChunkPlugin (ArcEglos, @ljcrapo)
• Allow using non-UMD externals combined with UMD externals (NMinhNguyen)

Bugfixes

• References to dll now contribute correctly to hash (dtinth)
• fix behavior of --watch-poll in CLI (Aladdin-ADD)
• set crossOrigin on script tags for HMR (STRML)
• fix usage of local AMD modules in AMD require (chuckdumont)
• show a warning when using g or y flag for context RegExp (simon-paris)
• chunk graph should be now more correct (sokra)

Performance

• fixes a performance problem with many ESM import/exports in a module (sokra)
• fixes a performance problem with heavily circular/interconnected chunks graphs (sokra)

[codecov]

Codecov Report

Merging #2027 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2027   +/-   ##
=======================================
  Coverage   21.34%   21.34%           
=======================================
  Files         262      262           
  Lines        5767     5767           
  Branches      693      688    -5     
=======================================
  Hits         1231     1231           
+ Misses       4001     3999    -2     
- Partials      535      537    +2

Impacted Files	Coverage Δ
app/vue/src/server/config/babel.js	0% <0%> (-100%)	⬇️
app/vue/src/server/babel_config.js	0% <0%> (-77.42%)	⬇️
app/vue/src/server/utils.js	0% <0%> (-53.58%)	⬇️
lib/ui/src/modules/ui/libs/filters.js	47.36% <0%> (ø)	⬆️
lib/ui/src/modules/ui/components/menu_item.js	19.14% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	33.33% <0%> (ø)	⬆️
.../src/manager/containers/CommentsPanel/dataStore.js	34.97% <0%> (ø)	⬆️
.../ui/src/modules/ui/components/layout/dimensions.js	15.62% <0%> (ø)	⬆️
...es__/update-addon-info/update-addon-info.output.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/down_panel.js	23.52% <0%> (ø)	⬆️
... and 26 more

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