fix: Ensure Correct Focus on Playground Chat Input

[Cristhianzl]

• This pull request addresses an issue where the Playground's chat input was not consistently receiving focus when it should. The focus behavior is now managed using useEffect to ensure the input field receives focus under the appropriate conditions.

✨ (textAreaWrapper/index.tsx): add useEffect hook to focus on input when conditions are met
♻️ (AppWrapperPage/index.tsx): remove unnecessary console.log statement

[github-actions]

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_{Last Modified at 27 Aug 24 20:48 UTC}

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[anovazzi1]

lgtm