Update dependency vanilla-framework to v2.22.0

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
vanilla-framework (source)	2.21.0 -> 2.22.0

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Release Notes

canonical-web-and-design/vanilla-framework

### [`v2.22.0`](https://togithub.com/canonical-web-and-design/vanilla-framework/releases/v2.22.0) [Compare Source](https://togithub.com/canonical-web-and-design/vanilla-framework/compare/v2.21.0...v2.22.0) #### Getting Vanilla Framework Install with NPM: Visit the documentation at #### New in Vanilla v2.22.0 ##### 🚀 Features - Add numbered variant to code snippet ([#​3490](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3490)) - Add code snippet icon modifier class ([#​3487](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3487)) - Add separator component ([#​3486](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3486)) - Code snippet pattern ([#​3474](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3474)) ##### 💣 Breaking Change As we are introducing the new Code snippet component, old components (code copyable, code numbered) are updated to new consistent styling. Most notably the 'copy' button from Code copyable component is being removed (is hidden). ##### 🐛 Bug Fixes - Apply is-inline button styles at the small breakpoint and up ([#​3497](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3497)) - Fix shifting headings in sortable tables ([#​3480](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3480)) - Remove unnecessary pseudo-element from tables ([#​3479](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3479)) - Change `%vf-hide-text` text indent to IE friendly value ([#​3461](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3461)) ##### 📝 Documentation - Move hacking documentation from README.md to HACKING.md ([#​3458](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3458)) ##### 🔨 Maintenance - Prepare Vanilla 2.22 release ([#​3496](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3496)) - Use correct key in map for x-small text ([#​3493](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3493)) - Update code copyable style to match code snippet ([#​3484](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3484)) - Update all non-major dependencies ([#​3485](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3485)) - Update base code block styles to match code snippet pattern ([#​3483](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3483)) - Fix broken LinkedIn share plugin link ([#​3476](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3476)) - Update actions/setup-node action to v2 ([#​3459](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3459)) - Update dependency postcss to v8.2.2 ([#​3460](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3460)) - If a standalone template does not exist, return a 404 rather than a 500. ([#​3457](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3457)) - Update PR template ([#​3456](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3456)) - Update all non-major dependencies ([#​3455](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3455)) - Removed redundant MAAS docs example ([#​3454](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3454)) - Bump ini from 1.3.5 to 1.3.7 ([#​3453](https://togithub.com/canonical-web-and-design/vanilla-framework/issues/3453))

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