Custom templates - Dark theme is not rendering properly

### Severity

Non blocking

### Template Type

Quick Start Templates

### Describe the Bug with repro steps

The templates UI for custom templates is not being rendered correctly in dark theme. There are examples in this blog.

https://techcommunity.microsoft.com/blog/integrationsonazureblog/%F0%9F%93%A2-announcing-public-preview-organizational-templates-in-azure-logic-apps/4425994

### Screenshots or Videos

_No response_

### What type of Logic App are you using?

Consumption

### Environment

Browser - Edge

### Are you experiencing a regression?

_No response_

### Additional context

_No response_