Update .gitmodules

[hellisabove]

Modification of the .gitmodule file solving an issue which prevents from cloning all of the submodules

Describe the issue (if no issue has been made)

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PR impact (Make sure to add closing keywords)

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Impact	Issue/PR
Issues this solves	None or #number(s)
Other PRs this solves	None or #number(s)

Proposed fix (Make sure you've read on how to contribute to Hazel)

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Additional context

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[hellisabove]

Before:

After:

[VagueLobster]

Before:

After:

There already is a pull request for this fix: https://github.com/TheCherno/Hazel/pull/617