feat: mark internal atoms as private

[arjunvegda]

• Mark internal atoms as private
• Bump Jotai@2.0.3

[codesandbox-ci[bot]]

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.

Latest deployment of this branch, based on commit 3ffda370b14a1826eb3b6fe31a0ac0e6bff7a992:

Sandbox	Source
React	Configuration
React Typescript	Configuration