Fix typos in source code comments

[vansszh]

Summary

Fix duplicate words and misspellings in comments across multiple packages. All changes are in comments only — no logic changes.

Changes

File	Fix
ReactFiberHooks.js	udpates → updates (2 occurrences)
ReactFiberAsyncAction.js	that that this → that this
ReactFiberComponentStack.js	a a single → a single
ReactFiberWorkLoop.js	the the call → the call
ReactFizzConfigDOM.js	is the the wrong → is in the wrong (3 occurrences)
ReactFizzComponentStack.js	a a single → a single
agent.js (devtools)	the the current → the current
DevToolsFiberComponentStack.js	a a single → a single

How did you test this change?

These are comment-only changes. No functional impact. Verified with git diff that only comments were modified.

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