Add CODEOWNERS file (#299)

* Add CODEOWNERS file template

* update CODEOWNERS

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Co-authored-by: nethermind-oss-compliance[bot] <189609862+nethermind-oss-compliance[bot]@users.noreply.github.com>
Co-authored-by: julio4 <[email protected]>

fix: build

feat: update CI/CD

Prepare release 2.8.2 (#257)

* dep: fix patch to latest shikijs for cairo hl

* fix(app): correct sidebar placement

* fix(app): responsive content centering

* fix(app): responsive content centering

* doc: branch guidelines

* fix(app): top section nav links