@nx/nest documentation improvement

[MilanKovacic]

Documentation issue

• Reporting a typo
• Reporting a documentation bug
• Documentation improvement
• Documentation feedback

Is there a specific documentation page you are reporting?

https://nx.dev/nx-api/nest

Additional context or description

• Showcase how to configure nest plugins as described here: How can I use nestjs cli plugin with nx? #23105 (comment). Related to Unable to modify build step for nestjs with nx v19 #23236
• In nest ecosystem, a lot of tooling (especially ORMs) require certain compiled assets present in the distribution; for example, the migrations folder. There have been several discussions open regarding this. My recommendation is to showcase the chaining of nx/js:tsc executor to compile such files and place them into the output, as described here: Allow to disable Webpack bundling for NestJS apps #8482 (comment)