Remove usages of `detectChanges` and rely on `whenStable`.
This commit also removed the usage of `provideZonelessChangeDetection` which is no longer necessary.
This will spare use the warning logs when the tests run.
```
NG0914: The application is using zoneless change detection, but is still loading Zone.js. Consider removing Zone.js to get the full benefits of zoneless. In applications using the Angular CLI, Zone.js is typically included in the "polyfills" section of the angular.json file.
```
PR Close#62596
This commit moves zoneless from experimental to developer preview.
* Update tag on provider API
* Remove "experimental" from provider name
* Move documentation from "experimental features" to "Best practives ->
Performance" (at least temporarily until there is a better place)
BREAKING CHANGE: `provideExperimentalZonelessChangeDetection` is
renamed to `provideZonelessChangeDetection` as it is now "Developer
Preview" rather than "Experimental".
PR Close#60748
To increase the ease of development we are moving @angular/docs into the adev directory within this repo. While
we are doing this to improve our development experience in the short term, efforts are also in place
to maintain a division between this @angular/docs (shared) code and adev itself, so that it can be extracted
back out in the future when components is ready to leverage it as well.
PR Close#57132
