ui: Prevent duplicate chrome trace categories

[camillobruni]

Chrome's new tracing extension can return duplicate entries for V8 categories
which in turn breaks the MultiSelect view in the chrome probe.

Add a temporary fix until the extension API on the chrome-side is fixed.

[github-actions]

🎨 Perfetto UI Build

✅ UI build is ready: https://storage.googleapis.com/perfetto-ci-artifacts/gh-21446412887-1-ui/ui/index.html

[etiennep-chromium]

Add a temporary fix until the extension API on the chrome-side is fixed.

Nit: I'm not sure this should be fixed in the extension. Chrome returns duplicates because the category exists in both chrome and v8; we can ideally fix that in chrome, but it makes sense for the recorder UI to de-duplicate anyways.

[camillobruni]

Add a temporary fix until the extension API on the chrome-side is fixed.

Nit: I'm not sure this should be fixed in the extension. Chrome returns duplicates because the category exists in both chrome and v8; we can ideally fix that in chrome, but it makes sense for the recorder UI to de-duplicate anyways.

fair, maybe we can just fix in the chrome-extension instead of the API?