#30561 accidentally switched the default scroll strategy for the timepicker to be `close` instead of `reposition`. It was unintentional so these changes switch it back to `reposition`.

(cherry picked from commit 3a97011)

Fixes that the `neutralVariantColor` and `errorColor` were missing from the schema which meant that users can't pass them in.

Fixes #30571.

(cherry picked from commit da371e9)

The tree examples were breaking down when forked to Stackblitz, because of a couple of reasons:
1. They had their sample data in a separate file which the build process wasn't picking up.
2. They had compilation errors only with rxjs 7+ which we didn't notice, because our local setup is on rxjs 6.

I also went through all the examples and moved the sample data further down so it doesn't distract from the actual code.

Fixes #30600.

(cherry picked from commit 5a98cc6)

…t and child environment injectors (#30610)

* fix(cdk/portal): fix incorrect injector hierarchy with `DomPortalOutlet` and child environment injectors

This commit fixes a regression that was introduced in #27427, where the injector hierarchy
did not respect nested environment injectors. `DomPortalOutlet` was always using the application
root as environment injector, yet the element injector may have a custom child environment injector
as ancestor. This child environment injector has to be retrieved manually and passed as environment
injector of the portal component.

Fixes #30609

* refactor(cdk/portal): store application in local variable to avoid repeated non-null assertion

This also has the benefit of minimizing more effectively, as the local variable can be renamed
but the separate field accesses could not.

(cherry picked from commit d0d5de4)

There are a bunch of factory functions that made it into our public API as a result of an old ViewEngine limitation where the factories had to be separate variables and had to be exported. With Ivy this isn't necessary and the factories can be inlined. Also they were never meant to be public APIs.

These changes mark them as deprecated so they can be dropped from the public API in v21.

(cherry picked from commit 810495c)

This will unblock the fixit where we'll introduce relative imports
that currently (without this commit) result in duplicated `d.ts`
declarations between entry-points.

…shadow DOM (#30619)

There are a few places where the autocomplete was checking if it has focus which were breaking down when inside the shadow DOM, because `document.activeElement` will point to the closest shadow root.

These changes consolidate the places where we check for focus and use our utility for resolving the focused element through shadow boundaries.

Fixes #30611.

(cherry picked from commit e61d152)