refactor: fix explicit type declarations

[deepsource-autofix[bot]]

Explicit types where they can be easily inferred may add unnecessary verbosity for variables or parameters initialized to a number, string, or boolean

[deepsource-io[bot]]

Here's the code health analysis summary for commits 60a71fa..4d4a95c. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
PHP	✅ Success		View Check ↗
JavaScript	✅ Success	🎯 12 occurences resolved	View Check ↗

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