fix: FluentToast width issue when using timestamp in i18n

[LuohuaRain]

Pull Request

When I set ToastTopCTAType.Timestamp, the timestamp width is incorrect, casuing the string to wrap. As shown below:

fluentui-blazor/examples/Demo/Shared/Pages/Toast/Examples/ToastCommunicationToasts.razor

Line 33 in 7b74779

TopCTAType = ToastTopCTAType.Timestamp,

Before

After

📖 Description

This PR fixes a width issue where the layout breaks when displayed in an i18n context. The previous implementation used a fixed width, which caused display problems due to varying text lengths in different languages. The changes ensure that the width is flexible and adapts to the content, providing a consistent user experience across all supported languages. Please review the changes and let me know if any adjustments are needed.

✅ Checklist

General

• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

Component-specific

• I have added a new component
• I have added Unit Tests for my new component
• I have modified an existing component
• I have validated the Unit Tests for an existing component

⏭ Next Steps