Add Browser UserAction Event

[Karlie-777]

Fixes #

Changes

Please provide a brief description of the changes here.

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Merge requirement checklist

• [ ] CONTRIBUTING.md guidelines followed.
• [ ] Change log entry added, according to the guidelines in When to add a changelog entry.
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• [ ] schema-next.yaml updated with changes to existing conventions.

[trask]

blocking temporarily to discuss whether we can unify screen coordinate representation with #2070

See #2145

[github-actions[bot]]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[lmolkova]

What's the status of this PR, is this ready for the general SemConv review?

[joaquin-diaz]

Since @Karlie-777 is not actively working on this I am continuing her work here https://github.com/open-telemetry/semantic-conventions/pull/2992 (I couldn't push to the same branch unfortunately). I am already working on the instrumentation side and we want to keep things moving

@thompson-tomo Could you take another look there? For starters I moved all the body fields to attributes, could you replicate any other comments you have here there so we can continue the conversation?

@david-luna I see you also have a pending comment, I replaced the keyboard.space and keyboard.enter for input as it wasn't very clear to me what was the intention for those either. Input should cover them and the rest of the keys

@MSNev and @breedx-splk You both approved this PR, could you please take another look at the new PR?

Thanks everyone!

[tedsuo]

Closing this in favor of #2992