ng-template won't load, missing internal SharedModule export inside p-menubar component

[ES-Six]

I'm submitting a bug report (check one with "x")

[x] bug report => Search github for a similar issue or PR before submitting
[ ] feature request => Please check if request is not on the roadmap already https://github.com/primefaces/primeng/wiki/Roadmap
[ ] support request => Please do not submit support request here, instead see http://forum.primefaces.org/viewforum.php?f=35

Current behavior

<ng-template pTemplate="start">...</ng-template> and <ng-template pTemplate="end">...</ng-template> are not loaded into DOM when using p-menubar inside a component of a lazy loaded module. But if I import the undocumented SharedModule into the LazyLoaded module, it works fine.

Expected behavior

<ng-template pTemplate="start">...</ng-template> and <ng-template pTemplate="end">...</ng-template> must be loaded by p-menubar when using it inside a component inside a lazy loaded Angular Module without having to import SharedModule (the primeng/api SharedModule) like other component does (ex : p-dropdown that export SharedModule internally, see : https://github.com/primefaces/primeng/blob/master/src/app/components/dropdown/dropdown.ts).

Minimal reproduction of the problem with instructions

Exemple of the bug (with comment showing the solution and the problem in the contact-base.component.html and contact.module.ts :

https://stackblitz.com/edit/primeng-menubar-demo-29wkyw

What is the motivation / use case for changing the behavior?

It's an undocumented behaviour.

The motivation is to improve consistency between the components of primeng (as some export SharedModule but p-menubar doesn't export it. And it will solve a bug too.

Please tell us about your environment:

• Angular version: 13.x (bug is not related to Angular)

• PrimeNG version: 13.4.0

• Browser: all

Affect all browsers as this bug is not browser related.

• Language: TypeScript ~4.6.2 (the version provided with the latest Angular version when generating a new Angular project.)

• Node (for AoT issues): node --version = 16.14.2
  On windows with NPM 8.8.0

Issue is not environment related.

Note : if you want, I can make a PR to solve the problem by exporting the PrimeNG internal SharedModule from p-menubar component (e.g : like primeng already does inside p-dropdown). If you accept PR, I will modify this file by exporting SharedModule in it https://github.com/primefaces/primeng/blob/master/src/app/components/menubar/menubar.ts.

Thank you for reading

[ES-Six]

Thank you :)