[Bug]: The package `@o3r/core` is not properly exposed

[kpanot]

Package name

core

Package version

12.0.0

Reproduction steps

There is currently several issue with the @o3r/core

Current result

• The folder dist/src is generated (and exported) in CJS because required by schematics, it should not be generated
• The TSServer fails auto-import from @o3r/core due to internal error
• The node16 module resolution fail to discover the package

Expected result

The listed issues above to be fixed

Additional comments

• The TsServer issue seems reproductible only with Pnp