Dropdown: dropdown doesn't document `data-bs-target` option & `parentNode` is ALWAYS the wrapper for toggle & menu

As we use the `dataApiKeydownHandler` only for events that are triggered on `[data-bs-toggle="dropdown"]` or on `.dropdown-menu`, we can ensure that their `parentNode` will ALWAYS be the `.dropdown` wrapper

> You can disable every form element within a form with the `disabled` attribute on the `<form>`.

I really want to be mistaken, because this would be a very useful feature! But I don't believe it's true. I can't find anything about this on MDN Web Docs, and adding the `disabled` attribute to a `<form>` does nothing on any browser in my testing.

The `disabled` attribute on a `<fieldset>` does disable all descendant form controls – perhaps that's where the mixup has come from.

* clean-css-cli   ^5.5.0  →   ^5.5.2
* cspell         ^5.16.0  →  ^5.17.0
* eslint          ^8.7.0  →   ^8.8.0
* hugo-bin       ^0.80.0  →  ^0.80.1
* karma          ^6.3.12  →  ^6.3.13
* rollup         ^2.66.0  →  ^2.66.1
* sass           ^1.49.0  →  ^1.49.4

* Tooltip.js: move `shown` check to method

* Tooltip.js: move Popper's creation to method

* Tooltip.js: merge checks before `hide`

* Tooltip.js: minor refactoring on `toggle` method

* Move cspell to Actions

* Remove the now unused `docs-spellcheck` npm script

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

* Fix visual tests

They broke in #34509

* load bundle.js in visual tests

Co-authored-by: GeoSot <geo.sotis@gmail.com>

* use `en-US`
* scan all markdown files
* ignore dist, rtl and tests files

Reference:

https://jasmine.github.io/tutorials/async

'DEPRECATION: An asynchronous function called its 'done' callback more than once. This is a bug in the spec, beforeAll, beforeEach, afterAll, or afterEach function in question. This will be treated as an error in a future version. See<https://jasmine.github.io/tutorials/upgrading_to_Jasmine_4.0#deprecations-due-to-calling-done-multiple-times> for more information.

* Move linkinator to GitHub Actions.

* Remove `docs-linkinator` npm script since it's no longer used

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Update Octicons website

* @babel/core        ^7.16.7  →  ^7.16.12
* @babel/preset-env  ^7.16.8  →  ^7.16.11
* cspell             ^5.15.2  →   ^5.16.0
* karma              ^6.3.11  →   ^6.3.12
* rollup             ^2.64.0  →   ^2.66.0
* sass               ^1.48.0  →   ^1.49.0

* Docs: group together examples reusable CSS in a stylesheet

* Use pointer-events utility in sidebars example

* Remove @import and move the content into _default/examples.html. Handle 2 sorts of dividers

* Remove footers.css extra css declaration

* Fix modals example

* Review: remove .b-example-hr

Co-authored-by: Gaël Poupard <ffoodd@users.noreply.github.com>

* bundlewatch             ^0.3.2  →   ^0.3.3
* cspell                 ^5.15.1  →  ^5.15.2
* eslint                  ^8.6.0  →   ^8.7.0
* eslint-plugin-unicorn  ^40.0.0  →  ^40.1.0
* hugo-bin               ^0.79.2  →  ^0.80.0
* karma                  ^6.3.10  →  ^6.3.11
* rollup                 ^2.63.0  →  ^2.64.0
* sass                   ^1.47.0  →  ^1.48.0

* README.md: mention Netlify

* Update README.md

Co-authored-by: Gaël Poupard <ffoodd@users.noreply.github.com>

We already use it in the change-version.js file

* specify the files to scan in the config
* enable `useGitignore` option
* remove a few unneeded suppressions