feat(components): PoC for post-tabs using light dom (and slot emulation from stencil)

[imagoiq]

Currently, we are waiting on ionic-team/stencil#5403 (see, ionic-team/stencil#5335 (comment)). <post-tab-panel> are added to the first slot available (the one in <post-tab-header>) which is not the slot in <div class="tab-content">.

Some preliminary observations of using Stencil light DOM emulation:

Advantages	Disadvantages
No issue with cross-root aria or forms association	Emulation is quite experimental at the moment (and we don't know how it is a priority for stencil team
	Less handle to limit overrided styles
	Is it really futur proof and easily translatable into server-side code?

Other comparisons:

• https://www.matuzo.at/blog/2023/pros-and-cons-of-shadow-dom/#con-styling-slotted-content

Styles can be scoped like any other framework which is good enough, I think.

[changeset-bot]

⚠️ No Changeset found

Latest commit: f123db0

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[swisspost-bot]

Preview environment ready: https://preview-2776--swisspost-design-system-next.netlify.app

[sonarcloud]

Quality Gate failed

Failed conditions
1 New Code Smells (required ≤ 0)

See analysis details on SonarCloud

Catch issues before they fail your Quality Gate with our IDE extension SonarLint