Outdated doc page: CommonJS in NS apps

[pavi2410]

Make sure to check the existing issues in this repository

Please, tell us what's the problem?

[ ] A typo
[ ] Wrong documentation
[ ] Improvement of existing article
[ ] Missing documentation
[X] New article needed

Please, tell us more details

Describe in more details

After the the release of NS v7, we now use ES modules. So, the docs must be updated to state that.

And update outdated docs to state that this is for a prior version of NS

Link to outdated doc: https://docs.nativescript.org/angular/core-concepts/commonjs-modules