Replaces `div` nodes inside the `button` with `span` since the former trigger some automated checkers.

Fixes #29484.

(cherry picked from commit 1aa8512)

* refactor(material/core): use util to build token vars

* remove todo

(cherry picked from commit b5bbda4)

* refactor(material/core): use util to build token vars

* rename to just token-definition

(cherry picked from commit 0a6b3ea)

Changes the dev app to use `inject` instead of constructor-based injection.

(cherry picked from commit 97749b1)

…ned (#29491)

Returns undefined when the fallback argument is undefined
for cases where the value is not a number

Fixes #29425

(cherry picked from commit c9078d1)

Adds an example that shows how to add drag&drop support to a `mat-tab-group`.

Fixes #13572.

(cherry picked from commit 67f9a29)

…tainer (#29514)

Fixes that the slide toggle was triggering the `:active` styles for the entire container, even though only parts of it are interactive.

Fixes #29483.

(cherry picked from commit 5892acf)

…ome mixins (#29513)

Fixes that the `system-level-colors` and `system-level-typography` mixins weren't using the `system-variables-prefix` passed in by the user.

Note: a bit of a gotcha here is that we need to store two separate prefixes, because in theory the user can pass different prefixes into `color` and `typography`.

Fixes #29504.

(cherry picked from commit 6d70114)

We were emitting a font family value like `var(--mat-dialog-font, Roboto, sans-serif)` which is invalid. These changes remove the fallback since it was primarily there to make it easier to land the MDC changes.

(cherry picked from commit 95d1354)

Updates the repo to the latest version of Angular to make it easier to test some of the new features.

(cherry picked from commit 570ed08)

…29436)

* fix(material/chips): added role presentation to mat-chip host

added role presentation to mat-chip host so that mobile SR users do not have to
double swipe to traverse chip

fixes b/286286473

* fix(material/chips): add aria-hidden

add aria-hidden to host mat-chip so Talkback ignores element

fixes b/286286473

* fix(material/chips): remove tabindex

remove tabindex

fixes b/286286473

* fix(material/chips): update api signature

update api signature

fixes b/286286473

* fix(material/chips): fix lint issue

fix lint issue

fixes b/286286473

* fix(material/chips): remove aria hidden

remove aria hidden

fixes b/286286473

(cherry picked from commit 5403b2b)