chore: update to angular 21

[robertIsaac]

[netlify[bot]]

❌ Check the deploy log for errors here: https://app.netlify.com/sites/fundamental-ngx/deploys

Name	Link
🔨 Latest commit	29c0da475b6a6a35b7873cd605b538e4fad6ad5e
🔍 Latest deploy log	https://app.netlify.com/projects/fundamental-ngx/deploys/6947b166b2ddc50008b4d557

[droshev]

@robertIsaac you are super fast! thank you! We need to merge few updates, trigger a release and then we should be good to bring ng21. btw the PR is failing

[robertIsaac]

@droshev yesI see problems with import of @fundamental-ngx/cdk/utils I think it's because nx doesn't support it yet, as it's not using a standard typescript paths will try again when they release their support https://github.com/nrwl/nx/discussions/33557

[robertIsaac]

for now I will make this one draft

[droshev]

the ticket that does the migration in nx

[robertIsaac]

I made experimental branch with the nx 22.3 but still the build fails so I created https://github.com/nrwl/nx/issues/33876