chore: codeowners revise chrome instructions

[BekahHW]

Description

• revise chrome ext
• deprecate hot message

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• [ ] Tier 1
• [ ] Tier 2
• [ ] Tier 3
• [ ] Tier 4

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[adiati98]

@BekahHW I have a review here to fix, but I approved it to save time. 🙂