docs: @cypress/vite-dev-server for testing Vue + React components

[JessicaSachs]

Please make sure all the requirements are satisfied, otherwise the PR could be closed without further notice.

Checklist

• [x] Title as described.
• [x] Make sure you put things in the right category.
• [x] The description of your item should be a sentence with less than 24 words.
• [x] Omit unnecessary words already provided in the context (e.g. for Vite, a Vite plugin).
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Plugins/Tools

• [x] The plugin/tool is working with Vite 2.x and onward.
• [x] The project is Open Source.
• [x] The project follows the Vite Plugins Conventions.
• [x] The plugin uses Vite specific hooks and can't be implemented as a Compatible Rollup Plugin.
• [x] The repo should be at least 30 days old.
• [x] The documentation is in English.
• [x] The project is active and maintained (projects that inactive for longer that 6 months will be removed without further notice).
• [x] The project accepts contributions.
• [x] Not a commercial product.

Starter Templates

• [ ] The starter template is working with Vite 2.x and onward.
• [ ] The documentation is in English.
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• [ ] The repo should be at least 30 days old.
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• [ ] The website is available without errors and load in a reasonable amount of time.
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[JessicaSachs]

The top of https://on.cypress.io/component-testing might be a better place to link? The installation docs feel like they're without context. I could also add my VueConfUS talk for more color.

[Scrum]

The top of https://on.cypress.io/component-testing might be a better place to link? The installation docs feel like they're without context. I could also add my VueConfUS talk for more color.

I think this is a good place.

[Scrum]

@JessicaSachs https://github.com/vitejs/awesome-vite/pull/248/checks?check_run_id=3379475496