Upgrade babel loader into esbuild loader

[bfoong-equinix]

Upgraded webpack's babel-loader into esbuild-loader to improve transpilation speed

Performance gain reference https://github.com/esbuild-kit/esbuild-loader/discussions/138

[changeset-bot]

🦋 Changeset detected

Latest commit: 42c0417

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
webpack-config-single-spa	Patch
webpack-config-single-spa-react	Patch
webpack-config-single-spa-ts	Patch
webpack-config-single-spa-react-ts	Patch

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[bfoong-equinix]

@joeldenning noticed you mentioned in another PR you are not actively maintaining anymore, which maintainer should we ping to get a review?

[gregorysl]

Looking through other closed PR's, I think @TheMcMurder might be the guy

[bfoong-equinix]

thanks @gregorysl. @TheMcMurder are you able to review this PR?

[MilanKovacic]

Hi, this PR would require more work, specifically taking into account caveats mentioned in the esbuild-loader documentation:

Caveats
esbuild only supports a subset of tsconfig options (see TransformOptions interface).

Enable isolatedModules to avoid mis-compilation with features like re-exporting types.

Enable esModuleInterop to make TypeScript's type system compatible with ESM imports.

Features that require type interpretation, such as emitDecoratorMetadata and declaration, are not supported.

→ Read more about TypeScript Caveats

I would recommend starting a discussion in the Slack's maintainers channel so we can discuss the implications.