fixed latest msgs being cut in the ui

[KlausMikhaelson]

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[github-actions]

I have found several issues in the code:

1. In the SpinnerWrapper component, there is a missing closing backtick () after the z-index` property.
2. In the MessageInputWrapper component, there is a missing closing backtick () after the z-index` property.
3. In the ChatContainer component, there is a missing closing curly brace (}) after the margin property.
4. In the MessageContainer component, there are multiple missing closing curly braces (}) after the media query rules.
5. There are commented out styles in the MessageContainer component. It seems like they are not needed and can be removed.

Please fix these issues and recheck the code.