This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.

⚠️⚠️⚠️⚠️⚠️⚠️

`main` is currently in **pre mode** so this branch has prereleases
rather than normal releases. If you want to exit prereleases, run
`changeset pre exit` on `main`.

⚠️⚠️⚠️⚠️⚠️⚠️

# Releases
## @swisspost/[email protected]

### Major Changes

- Updated the `post-togglebutton` component to offer greater
flexibility. You can now control the visibility of elements within the
`post-togglebutton` using the `data-showwhen="toggled"` and
`data-showwhen="untoggled"` attributes. Any content without a
`data-showwhen` attribute will always be visible, regardless of the
toggle state. (by [@alizedebray](https://github.com/alizedebray) with
[#4223](#4223))

### Minor Changes

- Added composable footer component. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Added the `post-megadropdown` component. (by
[@leagrdv](https://github.com/leagrdv) with
[#4177](#4177))

- Added the parts `button` and `body` in the `post-accordion-item`
component, so one can override styles from the outside. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Added the `post-breadcrumb` component to provide a standalone
breadcrumb navigation solution. (by
[@alionazherdetska](https://github.com/alionazherdetska) with
[#4065](#4065))

- Added the css parts `button` and `body` in the `post-accorddion-item`
component. (by [@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Added the `post-language-switch` component that enables users to
change the language of a page. (by
[@leagrdv](https://github.com/leagrdv) with
[#4044](#4044))

### Patch Changes

- Switched mega dropdown content to one column on mobile. (by
[@leagrdv](https://github.com/leagrdv) with
[#4300](#4300))

- Fixed opening state of megadropdown trigger and expanded detection.
(by [@leagrdv](https://github.com/leagrdv) with
[#4299](#4299))

- Fix tab isolation in nested `post-tabs` components by scoping tab
queries and interactions to the current instance. (by
[@alionazherdetska](https://github.com/alionazherdetska) with
[#4211](#4211))

- Added a fixed slot `post-list-item` on the `post-list-item` host
element, so it is no longer necessary to add it manually. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Fixed the used `headingLevel` in the `post-accorddion-item` component.
The component now uses the value from its closest `post-accorddion`
parent component, if this is specified and falls back to `h2` if not
specified. (by [@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Updated the `post-togglebutton` to function like a real button,
including support for keyboard navigation and proper focus styles. (by
[@alizedebray](https://github.com/alizedebray) with
[#4242](#4242))

- Fixed an issue with the post-list component where the `horizontal`
property could not be set programmatically. Also, reduced the
specificity of the component's styles to make customization easier. (by
[@alizedebray](https://github.com/alizedebray) with
[#4137](#4137))

-   Updated dependencies:
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Minor Changes

- Added composable footer component. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Removed outdated portal-specific styles, including
subnavigation-related rules. (by
[@alionazherdetska](https://github.com/alionazherdetska) with
[#4186](#4186))

- Added the possibility to define a `$child-selector` parameter with our
list mixins, so they can be used also with custom elements. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Updated the utility classes for sizing. (by
[@myrta2302](https://github.com/myrta2302) with
[#4012](#4012))

- Updated `.btn-link` to look like a regular link and old `.btn-link` is
now `.btn-tertiary .px-0`. (by [@leagrdv](https://github.com/leagrdv)
with [#4200](#4200))

- Implemented new pixel based sizes. (by
[@myrta2302](https://github.com/myrta2302) with
[#4012](#4012))

### Patch Changes

- Fixed the `btn-icon` styles, so icons within can no longer be rendered
too small, because of the inline-padding on the button. (by
[@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Fixed the appstore-badge styles to get rid of the inline gap below.
(by [@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]



## @swisspost/[email protected]



## @swisspost/[email protected]



## @swisspost/[email protected]

### Minor Changes

- Added the `post-breadcrumb` component to provide a standalone
breadcrumb navigation solution. (by
[@alionazherdetska](https://github.com/alionazherdetska) with
[#4065](#4065))

- Updated the utility classes for sizing. (by
[@myrta2302](https://github.com/myrta2302) with
[#4012](#4012))

- Added the css parts `button` and `body` in the `post-accorddion-item`
component. (by [@oliverschuerch](https://github.com/oliverschuerch) with
[#4190](#4190))

- Updated `.btn-link` to look like a regular link and old `.btn-link` is
now `.btn-tertiary .px-0`. (by [@leagrdv](https://github.com/leagrdv)
with [#4200](#4200))

- Implemented new pixel based sizes. (by
[@myrta2302](https://github.com/myrta2302) with
[#4012](#4012))

- Added the `post-language-switch` component that enables users to
change the language of a page. (by
[@leagrdv](https://github.com/leagrdv) with
[#4044](#4044))

### Patch Changes

- Updated the `post-togglebutton` component to offer greater
flexibility. You can now control the visibility of elements within the
`post-togglebutton` using the `data-showwhen="toggled"` and
`data-showwhen="untoggled"` attributes. Any content without a
`data-showwhen` attribute will always be visible, regardless of the
toggle state. (by [@alizedebray](https://github.com/alizedebray) with
[#4223](#4223))
-   Updated dependencies:
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]
    -   @swisspost/[email protected]

## @swisspost/[email protected]

### Patch Changes

-   Updated dependencies:
    -   @swisspost/[email protected]

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>