fix(webpack): always resolve core-js to v3

[pi0]

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

@babel/polyfill translates : var b = new Map(); into import "core-js/modules/es6.map"; var b = new Map(); thus webpack tries to require node_modules/core-js. In case of package-manager hoists core-js@2 in node_modules and moves core-js@3 to node_modules/@nuxt/babel-preset-app/node_modules we will get into trouble. This PR forces webapck to correctly resolve from correct version of core-js.

Fixes nuxt-community/pwa-module#170

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly. (PR: #)
• I have added tests to cover my changes (if not applicable, please state why)
• All new and existing tests are passing.

[codecov-io]

Codecov Report

Merging #5307 into dev will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              dev   #5307      +/-   ##
=========================================
+ Coverage   95.66%   95.7%   +0.03%     
=========================================
  Files          74      74              
  Lines        2513    2513              
  Branches      639     639              
=========================================
+ Hits         2404    2405       +1     
+ Misses         92      91       -1     
  Partials       17      17

Impacted Files	Coverage Δ
packages/webpack/src/config/base.js	95.5% <ø> (ø)	⬆️
packages/vue-renderer/src/renderer.js	92.07% <0%> (+0.49%)	⬆️

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