[Authentication] Edit button appearanace

### Severity

P3 - Medium (Minor functionality affected)

### MCP Server Creation Source

MCP Server in Logic Apps

### Describe the Bug with repro steps

### Issue description:
Edit button spacing looks to wide.

### Recommendation:
To help with spacing, let's try and use the `Transparent` button appearance. This will remove the background and boarder styling on hover. Spacing between input and edit button is 8px.

### Links:
- https://storybooks.fluentui.dev/react/iframe.html?viewMode=docs&id=components-button-button--docs&globals=#appearance

### Screenshot:

### Screenshots or Videos

_No response_

### Environment

n/a

### Are you experiencing a regression?

_No response_

### Additional context

_No response_