Replace act import deprecation warnings

[TheMythologist]

Description

Gets rid of the warning when running tests:

Warning: `ReactDOMTestUtils.act` is deprecated in favor of `React.act`. Import `act` from `react` instead of `react-dom/test-utils`. See https://react.dev/warnings/react-dom-test-utils for more info.

Reference: https://react.dev/warnings/react-dom-test-utils#reactdomtestutilsact-warning

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Code quality improvements

Checklist

• I have tested this code

[coveralls]

Pull Request Test Coverage Report for Build 10979072522

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 31.449%

---

Totals
Change from base Build 10953231367:	0.0%
Covered Lines:	4852
Relevant Lines:	14547

---

💛 - Coveralls

[RichDom2185]

LGTM, thanks a lot for this and congrats on your first contribution to Source Academy!