Fix race condition when clearing text

[DanielCardonaRojas]

🔗 Issue Links

• Fixes [#ISSUE_ID] (replace with Linear or GitHub issue link if available)

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🎯 Goal

Ensure the chat composer TextField is reliably cleared after sending a message, when autocorrection is active and a SwiftUI TextField is used.

For context, my usecase requires me to use a custom configured TextField instead of ComposerInputView (UIViewRepresentable implementation) provided by this SDK. There is a race condition caused by clearing the text twice and the system autocorrection.

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📝 Summary

• Removed immediate text = "" call from clearInputData()
• Kept deferred clear in clearText() to reset input after UIKit finishes applying autocorrections
• Prevented a race condition between app state updates and UIKit’s delayed autocorrect commit

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🛠 Implementation

• Clearing text immediately conflicted with this delayed commit, causing the autocorrected text to reappear in the input field.
• The fix removes the redundant immediate clear and relies solely on the deferred clear (DispatchQueue.main.asyncAfter).
• This ensures the field is reset only after UIKit has finished its autocorrection cycle.

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🎨 Showcase

Before	After
Input sometimes still shows autocorrected text after sending	Input reliably clears after sending

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🧪 Manual Testing Notes

1. Type a word that triggers autocorrection (e.g., teh → the).
2. Without manually accepting the suggestion, tap Send.
3. ✅ The message is sent and the input clears immediately.
4. Repeat with different autocorrections and verify consistent behavior.

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☑️ Contributor Checklist

• I have signed the Stream CLA (required)
• This change should be manually QAed
• Changelog is updated with client-facing changes
• Changelog is updated with new localization keys
• New code is covered by unit tests
• Documentation has been updated in the docs-content repo