fix(alerts): flaky test error

[justinpark]

SUMMARY

This commit fixes the following flaky test error.

✕ renders the appropriate dropdown in Message Content section (1160 ms)

  ● renders the appropriate dropdown in Message Content section

    expect(element).toBeChecked()

    Received element is not checked:
      <input class="ant-radio-input" type="radio" value="chart" />

      63 |   userEvent.click(chartRadio);
      64 |
    > 65 |   expect(await screen.findByRole('radio', { name: /chart/i })).toBeChecked();

This commit also cleaned up warnings related to the react-ace editor and onHide prop by using jest.mock.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After:

Before:

TESTING INSTRUCTIONS

npm run test

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #23860 (1a212cd) into master (053dca1) will not change coverage.
The diff coverage is n/a.

❗ Current head 1a212cd differs from pull request most recent head 94fcef3. Consider uploading reports for the commit 94fcef3 to get more accurate results

@@           Coverage Diff           @@
##           master   #23860   +/-   ##
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  Coverage   68.11%   68.11%           
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  Files        1938     1938           
  Lines       74958    74958           
  Branches     8141     8141           
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  Hits        51055    51055           
  Misses      21824    21824           
  Partials     2079     2079           

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[michael-s-molina]

LGTM