Legacy gateway 2 8

[fabianrbz]

Description

Leave gateway 2.8 only
Remove docs sets, kong_versions and top nav

Added redirects to dev site for everything else + a link in the dropdown to newer versions.

TODO: update sitemap

Testing instructions

https://legacy-gateway-2-8--kongdocs.netlify.app/

Checklist

• Review label added
• Conditional version tags added, if applicable.

[netlify]

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Lighthouse	9 paths audited Performance: 94 (🟢 up 5 from production) Accessibility: 82 (🔴 down 11 from production) Best Practices: 99 (🟢 up 9 from production) SEO: 95 (🔴 down 3 from production) PWA: - View the detailed breakdown and full score reports

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[lena-larionova]

• Rename branch to gateway-lts
• Add a redirect for dev portal and vitals that go from dev site to this branch (they should go to 3.4):
  • https://developer.konghq.com/archive/dev-portal to https://gateway-lts--kongdocs.netlify.app/gateway/3.4.x/kong-enterprise/dev-portal/
  • https://developer.konghq.com/archive/vitals to https://gateway-lts--kongdocs.netlify.app/gateway/3.4.x/kong-enterprise/analytics/
• Add 3.4 and 3.10