Describe the bug

Timeline icon is not showing

To Reproduce
Steps to reproduce the behavior:

1. Navigate to Visualize
2. Create a Timeline visualization
3. Navigate back to the Visualize List
4. Notice the Timeline visualization does not have an icon

Expected behavior
Should load the icon

OpenSearch Version
1.0

Dashboards Version
1.0

Screenshots

Host/Environment (please complete the following information):

• OS: Ubuntu
• Browser and version [e.g. 22]: Firefox

Additional context

Add any other context about the problem here.