refactor: replace deep-equal with dequal

[sxzz]

Description

deep-equal contains up to 50 sub-dependencies.

https://npm.anvaka.com/#/view/2d/deep-equal

Additional context

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What is the purpose of this pull request?

• [ ] Bug fix
• [ ] New Feature
• [ ] Documentation update
• [x] Other

Before submitting the PR, please make sure you do the following

• [ ] Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• [ ] Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• [ ] Ideally, include relevant tests that fail without this PR but pass with it.

[sxzz]

(Too long to post)