[BUG] Dialog from component - example is broken

[RobotCherries]

🐞 Bug report

Description

The stackblitz example for the Dialog from component doesn't work.

Reproduction

https://stackblitz.com/edit/angular-taiga-dialog-from-component-broken-example

Expected behavior

Working stacklitz example

[RobotCherries]

I have fixed the errors present in the broken stackblitz demo, by:

1. creating the missing referenced DialogExampleComponent
2. replacing the new component's files with the files present in dialog-example folder https://github.com/TinkoffCreditSystems/taiga-ui/tree/173213fa013c73ea38e2afbc16c5ba3f3996bae3/projects/demo/src/modules/services/dialogs/dialog-example
3. adding the new component in the app.module.ts declarations & entryComponents.

Here is a working example.

[waterplea]

I've created a blanket issue for Open on StackBlitz problems:
#673