feat: change types into React.Key of tabs props

[Lantianyou]

IMO, the key type will make more sense as React.Key. Since I have not read the codebase throughly, maybe the key is string for a reason. If so, feel free to close this PR.

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Name	Status	Preview	Comments	Updated
tabs	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Mar 2, 2023 at 9:06AM (UTC)

[codecov[bot]]

Codecov Report

Merging #653 (9862844) into master (81f004d) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 9862844 differs from pull request most recent head 533ebed. Consider uploading reports for the commit 533ebed to get more accurate results

@@           Coverage Diff           @@
##           master     #653   +/-   ##
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  Coverage   98.07%   98.07%           
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  Files          17       17           
  Lines         622      622           
  Branches      165      165           
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  Hits          610      610           
  Misses         12       12           

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