refactor useShallow

[dai-shi]

I'm not sure if this is really required, or it's just bypassing something.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
zustand-demo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 27, 2024 1:11am

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

[github-actions]

Size Change: +13 B (+0.11%)

Total Size: 12.2 kB

Filename	Size	Change
./dist/esm/react/shallow.mjs	274 B	+7 B (+2.62%)
./dist/react/shallow.js	288 B	+6 B (+2.13%)

ℹ️ View Unchanged

Filename	Size
./dist/esm/index.mjs	64 B
./dist/esm/middleware.mjs	3.56 kB
./dist/esm/middleware/immer.mjs	210 B
./dist/esm/react.mjs	333 B
./dist/esm/shallow.mjs	82 B
./dist/esm/traditional.mjs	416 B
./dist/esm/vanilla.mjs	403 B
./dist/esm/vanilla/shallow.mjs	550 B
./dist/index.js	244 B
./dist/middleware.js	3.56 kB
./dist/middleware/immer.js	229 B
./dist/react.js	353 B
./dist/shallow.js	189 B
./dist/traditional.js	430 B
./dist/vanilla.js	416 B
./dist/vanilla/shallow.js	562 B

_{compressed-size-action}