Angular - Fixing empty navigation item for a library

[sumeyyeKurtulus]

Description

Resolves https://github.com/volosoft/volo/issues/19953

Checklist

• [X] I fully tested it as developer / designer and created unit / integration tests
• [X] I documented it (or no need to document or I will create a separate documentation issue)

How to test it?

• You need to create a microservice app and add a microservice through suite
• Delete the generated library that is apps/angular/projects/<your-service>
• Get a build for the schematics package under npm/ng-packs by running yarn build:schematics
• Go to the npm/ng-packs/dist/packages/schematics and run yarn link, then copy the link command given in the output
• You need to paste it under apps/angular of your microservice. Then, run this command to regenerate your service yarn ng g @abp/ng.schematics:create-lib --package-name "<your-service>" (Select false for secondary endpoint and override questions. Pick module as a type since the standalone templates are not published yet.)
• Once you run the app, you should not see the routing of your service in the navbar since it has no valid page in it.
• Create entities for that specific service. This time, you will need to see the route items in the navbar if you have the necessary permissions.