[API] generate a typed client for AcceleratorClass

[pallasathena92]

What this PR does

AcceleratorClass was missing the +genclient marker, so client-gen never produced a typed client, lister, or informer for it — the only one of the eight root API types affected.

Why we need it

The consequence was visible in the generated tree — pkg/client/clientset/versioned/typed/ome/v1beta1/ had a file for all seven other types and none for AcceleratorClass. Consumers had to fall back to the dynamic client or controller-runtime.

What Changes

AcceleratorClass is cluster-scoped, so +genclient alone would generate a namespaced client — it would compile fine and then fail at runtime against a cluster-scoped resource. so add +genclient:nonNamespaced as well

Two incidental tidy-ups:

• removed a blank line that separated the marker block from type AcceleratorClass struct (which is what let this slip past a marker scan in the first place)
• normalized scope=Cluster → scope="Cluster" to match the other cluster-scoped types.
  Fixes #

How to test

Checklist

• Tests added/updated (if applicable)
• Docs updated (if applicable)
• make test passes locally

[github-actions]

⚠️ Pre-commit checks failed

Please run the following locally and commit the fixes:

pre-commit run --all-files
git add -u && git commit

See CONTRIBUTING.md for setup instructions.