Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3

)

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updated-dependencies:
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  dependency-type: direct:production
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Co-authored-by: XhmikosR <xhmikosr@gmail.com>

* Add static backdrop option,  to offcanvas
* Trigger prevented event on esc with keyboard=false
* Change offcanvas doc , moving backdrop examples to examples section

* Split CSS vars for padding values

Make these few components consistent with where we're heading with other components. Had to add some new Sass variables to handle the dropdown-header element, but not a huge deal. This ensures we can drop the combined variable in v6 when we're ready.

* Update scss/_dropdown.scss

Co-authored-by: Julien Déramond <julien.deramond@orange.com>

* Deprecate dropdown-header-padding var

Co-authored-by: Gaël Poupard <ffoodd@users.noreply.github.com>
Co-authored-by: Julien Déramond <julien.deramond@orange.com>

Bumps [terser](https://github.com/terser/terser) from 5.11.0 to 5.12.0.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v5.11.0...v5.12.0

)

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We already know that carousel's parent is the carousel element, so we can use it explicitly

Bumps [find-unused-sass-variables](https://github.com/XhmikosR/find-unused-sass-variables) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/XhmikosR/find-unused-sass-variables/releases)
- [Commits](https://github.com/XhmikosR/find-unused-sass-variables/compare/v4.0.2...v4.0.3

)

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  update-type: version-update:semver-patch
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This reverts commit da9c0071.

* Dropdown.js: Remove duplicated check for `Not Shown` instance

* Dropdown.js: Rearrange `dataApiKeydownHandler` checks

* Dropdown: do some fixup inside `dataApiKeydownHandler`

* Update dropdown.js

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

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 2 to 3.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/v2...v3

)

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* @rollup/plugin-babel         ^5.3.0  →   ^5.3.1
* @rollup/plugin-commonjs     ^21.0.1  →  ^21.0.2
* @rollup/plugin-replace       ^3.1.0  →   ^4.0.0
* eslint                       ^8.9.0  →  ^8.10.0
* find-unused-sass-variables   ^4.0.1  →   ^4.0.2
* hugo-bin                    ^0.80.2  →  ^0.81.0
* karma                       ^6.3.16  →  ^6.3.17
* postcss                      ^8.4.6  →   ^8.4.7
* sass                        ^1.49.8  →  ^1.49.9

- Updates the utilities mixin to check for specific CSS variable names via `css-variable`
- Bonus fix: we now prevent local variables for `0` value utilities (e.g., `.border-top-0` no longer sets `--bs-border-opacity: 1`
- Adds new `.border-opacity-*` classes
- Adds new root variables: `--bs-border-color`, `--bs-border-style`, `--bs-border-width`
- Documents the new variable changes

Use the new .table-group-divider to create your own dividers as desired. Would love to find a better way to handle border-color for this, but for now, this is at least opt-in.

I've applied it by default in another way for our docs tables to help differentiate our content vs our components.

Fixes #35342

Some Linux distributions (like Debian) have fontconfig aliases for Arial
that picks specific fonts. But such generic aliases might be less
desirable than the known-good Linux specific fonts.

This fixes a problem on my setup where Liberation Sans is aliased as
Arial, even when Noto Sans is available. Liberation Sans doesn't support
a weight of 500, so we end up rendering headers at the normal weight of
400, which makes them stand out less. Reordering the Arial fallback
makes us instead pick Noto Sans over Lieration Sans, which does support
a weight of 500, and makes headers stand out again.

While we're at it, fixup the reboot documentation to match, and change
the comment about Helvetica Neue; that's not a "Basic web-fallback" font,
it's the UI font on older iOS and macOS versions.

In this way we can use color tints other than grays in our custom theme, w/o having to extend it later (e.g `$primary: $indigo-600;` ). This could be done in the project variables file, but i believe most developers just include a full local copy of  `scss/_variables.scss` before the the original `default` file and change the values the need (maybe also removing the !default flag) so that it's easier to track changes and custom values during upgrades.

* Add Tabler Icons to list of icons

* Update site/data/icons.yml

Co-authored-by: Mark Otto <otto@github.com>
Co-authored-by: Mark Otto <markd.otto@gmail.com>

Util.findShadowRoot() returns either null or an object.

It cannot return falsy, which allows this optimization.

* Add z-index for .toast-container

- Adds positioning and z-index to toast container so that it has a system-declared layer in relation to other components.
- Updates docs to use the class better

Fixes $34028

* Remove unnecessary z-index from docs examples