* scrollbar.js:
add some tests
transfer test from modal.spec. to scrollbar.spec
proper handling if style property doesn't exist

Allow use of `dispose/hide` methods on Tooltip & Popover from jQueryInterface, when component does not exists. (#33371)

The copy to clipboard buttons have a `z-index:10` while the toasts were styled to have a `z-index:5" causing them to appear under the button.

Add `getNextActiveElement` helper function to utils, replacing custom implementation through components (#33608)

Bumps [@babel/cli](https://github.com/babel/babel/tree/HEAD/packages/babel-cli) from 7.13.16 to 7.14.3.
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- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.14.2 to 7.14.3.
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- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
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* Remove content holder when there is no content

* Add tests to check the removal of header/content

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

* Bump version to 5.0.1.

* Dist

Looking around on js components I found out many checks, different expressed but with same purpose.
Some of them are trying to parse string to element, others, jQuery element to js simple nodeElement etc

With this Pr, I am trying to give a standard way to parse an element

So this pr:

* Creates `getElement` helper that tries to parse an argument to element or null
* Changes `isElement` to make  explicit checks and return Boolean 
* fixes tests deficiencies

* @babel/core             ^7.14.0  →   ^7.14.2
* @babel/preset-env       ^7.14.1  →   ^7.14.2

Bumps [sass](https://github.com/sass/dart-sass) from 1.32.12 to 1.32.13.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/master/CHANGELOG.md)
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This reverts commit 17252bb3

.

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Fixes #33817

Solution by  @Hintzmann in [#33817 (comment)](https://github.com/twbs/bootstrap/issues/33817#issuecomment-831718042).

Added z-index property for input-group only for invalid state

* Add Fathom Analytics to v5 docs

* newline

Bumps [@rollup/plugin-node-resolve](https://github.com/rollup/plugins/tree/HEAD/packages/node-resolve) from 11.2.1 to 13.0.0.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/node-resolve/CHANGELOG.md)
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Bumps [@rollup/plugin-commonjs](https://github.com/rollup/plugins/tree/HEAD/packages/commonjs) from 18.0.0 to 19.0.0.
- [Release notes](https://github.com/rollup/plugins/releases)
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/commonjs/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/commonjs-v19.0.0/packages/commonjs

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Bumps [karma-jasmine-html-reporter](https://github.com/dfederm/karma-jasmine-html-reporter) from 1.5.4 to 1.6.0.
- [Release notes](https://github.com/dfederm/karma-jasmine-html-reporter/releases)
- [Commits](https://github.com/dfederm/karma-jasmine-html-reporter/compare/v1.5.4...v1.6.0

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Bumps [glob](https://github.com/isaacs/node-glob) from 7.1.6 to 7.1.7.
- [Release notes](https://github.com/isaacs/node-glob/releases)
- [Changelog](https://github.com/isaacs/node-glob/blob/master/changelog.md)
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Bumps [eslint](https://github.com/eslint/eslint) from 7.25.0 to 7.26.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.25.0...v7.26.0

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Bumps [postcss](https://github.com/postcss/postcss) from 8.2.13 to 8.2.15.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
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* Force each plugin that extends base-components to implement a static method `NAME()`
* Remove redundant `NAME` argument from 'Utils.defineJQueryPlugin' & fix test

* test: add test if user clicks on input not contained within dropdown-menu

* fix: click on inputs that are not contained within dropdown-menu prevent dropdown from closing