[Toolbar] Dispose of JS module properly

[adamint]

Pull Request

📖 Description

The FluentToolbar component does not gracefully fail when the circuit is disconnected, unlike other components. All this PR does is ignore the common disposal exceptions that aren't actually errors.

@vnbaaij

🎫 Issues

Bug introduced in https://github.com/microsoft/fluentui-blazor/pull/3200/files#diff-c46cfdab564549443ae663c4d78f9bddc88ce16058ea6e4613572fd51a27ad7d

👩‍💻 Reviewer Notes

📑 Test Plan

✅ 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