[FLINK-38044][runtime-web] update angular to v19

[Laffery]

What is the purpose of the change

Angular framework and NG-ZORRO both have released their stable v19 versions. It is a good time to bump them to the latest.

Brief change log

• update frontend framework angular and ng-zorro-antd to v19
• migrate angular builder to application (which is default in v19)
• remove redundant standalone:true (which is default in v19)
• move utility function typeDefinition to public-api

Verifying this change

Please make sure both new and modified tests in this PR follow the conventions for tests defined in our code quality guide.

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): yes
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no

[Laffery]

useless

[flinkbot]

CI report:

• 86b7a90 Azure: FAILURE

Bot commands

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• @flinkbot run azure re-run the last Azure build

[davidradl]

The initial contribution of a change should be made to master and then backported appropriately.

Can I check why we have not gone for Angular 20 which now has a stable release?

[Laffery]

The initial contribution of a change should be made to master and then backported appropriately.

Can I check why we have not gone for Angular 20 which now has a stable release?

Thanks for your reminder, I will create a new one to the master branch.

Of course I can update to angular v20 directly, I will do the change :)