v8.8.0

Issue number: resolves #30735

---------

## What is the current behavior?
Toast's wrapper and content divs do not have part attributes.

## What is the new behavior?
- Adds `wrapper` and `content` parts to Toast.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

<!--
  If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
  2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
-->


## Other information

This PR was originally opened by @Hurubon here in #30737. It was lost in
`feature-8.8` due to a bad merge, so this PR is to re-apply this feature
so it can go out in 8.8.1 (it was originally supposed to go out in
8.8.0)

Co-authored-by: Hurubon <58346722+Hurubon@users.noreply.github.com>

Co-authored-by: Hurubon <58346722+Hurubon@users.noreply.github.com>

Issue number: resolves internal

---------

## What is the current behavior?
When an accordion item was set as disabled, it was still possible to
focus using keyboard navigation.

## What is the new behavior?
When an accordion item is disabled, `tabindex` is set as -1 to stop
being focusable using the keyboard navigation.

## Does this introduce a breaking change?

- [ ] Yes
- [ ] No

## Other information


[preview](https://ionic-framework-qznd9tqne-ionic1.vercel.app/src/components/accordion-group/test/states/)

---------

Co-authored-by: Maria Hutt <maria.hutt@outsystems.com>

Issue number: internal

---------

## What is the current behavior?
Currently, the 8.8 refresher events are not exported to Angular

## What is the new behavior?
With this change, we export the new events and also add Angular tests to
validate that they work and will continue working in the future.

## Does this introduce a breaking change?

- [ ] Yes
- [X] No