feat(website): add a supported environments section

[weronikaolejniczak]

Summary

Closes https://github.com/elastic/eui-private/issues/205

On this PR, I add a section regarding supported environments to our docs. For quick reference:

Environment	Supported?	Details
React 16	✅	Fully supported (plans to deprecate support for React 16)
React 17	✅	Fully supported
React 18	✅	Fully supported (recommended)
React 19	❌	Not supported (plans to introduce support for React 19)
Webpack	✅	Fully supported
Vite	⚠️	Supported with caveats (details)
Rollup	⚠️	Supported with caveats (details)
esbuild	⚠️	Supported with caveats (details)
Strict Mode	❌	Not supported (details)
Server-side Rendering	⚠️	Supported with caveats (details)

[!NOTE] The table won't render correctly. Because it doesn't contain any EUI components, any interactivity, I decided to go with Markdown syntax. It will be fixed on https://github.com/elastic/eui/issues/8682

QA

• [ ] Verify the table details are accurate

[weronikaolejniczak]

@tkajtoch I applied the suggestions, thank you!

[elasticmachine]

:green_heart: Build Succeeded

• Buildkite Build
• Commit: 134a69d19a16c1e393685c78650dcf61da76a8de
• Documentation website

History

• :green_heart: Build #463 succeeded da10d0c356b0fc1df88493b3bd3d16ad7b6fcfe7
• :green_heart: Build #413 succeeded 224770a4e8118b0f18b272b6ddc95c4d27580d97

cc @weronikaolejniczak

[elasticmachine]

:green_heart: Build Succeeded

• Buildkite Build
• Commit: 134a69d19a16c1e393685c78650dcf61da76a8de

History

• :green_heart: Build #4107 succeeded 224770a4e8118b0f18b272b6ddc95c4d27580d97

cc @weronikaolejniczak

[weronikaolejniczak]

@elastic/eui-team let me know what you think!