chore: ignore website docs generated in biome

[nunogois]

https://linear.app/unleash/issue/2-3208/add-website-docs-generated-folder-to-biome-ignore-lists

Noticed when running yarn lint locally that we get this error:

./website/docs/generated/openapi.json format ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Size of ./website/docs/generated/openapi.json is 1.7 MiB which exceeds configured maximum of 1.0 MiB for this project.
    The file size limit exists to prevent us inadvertently slowing down and loading large files that we shouldn't.
    Use the `files.maxSize` configuration to change the maximum size of files processed.

To overcome this, this PR adds website/docs/generated to the ignore list of both the linter and formatter in our Biome settings.

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2 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
unleash-docs	⬜️ Ignored (Inspect)	Visit Preview		Jan 29, 2025 1:44pm
unleash-monorepo-frontend	⬜️ Ignored (Inspect)	Visit Preview		Jan 29, 2025 1:44pm

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[kwasniew]

is it safe to increase it for SEO/WebPerf?

[nunogois]

By adding the generated folder to the ignore lists we no longer need this, so I'm removing it. I don't expect this to impact SEO/WebPerf at all, it's just a sane limit that Biome has by default to not load large files. See: https://biomejs.dev/reference/configuration/#filesmaxsize