perf(core): skip esm for node_modules and non .js files

[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

Skip using esm for files inside node_modules and only use for .js/.mjs files (resolved first!). useESM set to true for modules to prevent breaking changes on 2.x.

Also fixes #5203.

Currently startup of nuxt dev requires these:

/node_modules/node-fetch/package.json
/node_modules/unfetch/package.json
/node_modules/vue/package.json
/node_modules/vue-meta/package.json
/node_modules/vue-no-ssr/package.json
/node_modules/vue-router/package.json
/node_modules/vue-template-compiler/package.json
/node_modules/vuex/package.json
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js
/node_modules/postcss-import/index.js
/node_modules/postcss-url/src/index.js
/node_modules/postcss-preset-env/index.js
/node_modules/cssnano/dist/index.js

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 #5220 into dev will increase coverage by 0.04%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev    #5220      +/-   ##
==========================================
+ Coverage   96.28%   96.32%   +0.04%     
==========================================
  Files          73       73              
  Lines        2476     2478       +2     
  Branches      628      630       +2     
==========================================
+ Hits         2384     2387       +3     
+ Misses         77       76       -1     
  Partials       15       15

Impacted Files	Coverage Δ
packages/core/src/module.js	98.33% <100%> (+0.05%)	⬆️
packages/core/src/resolver.js	98.43% <100%> (ø)	⬆️
packages/vue-renderer/src/renderer.js	94.89% <0%> (+0.51%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 37006f6...a3a6fc3. Read the comment docs.