[Story] handle remote mcp configuration

### Description

Connected to https://github.com/stacklok/toolhive/issues/1172

[Figma](https://www.figma.com/design/KuQGsgrNzRCGmSTl520Hwh/branch/OpWzVT2lGyz7qQLhi5KFW1/Toolhive-Desktop?node-id=3002-3484&m=dev)

### Acceptance Criteria

_No response_

### Priority

Medium

### Task Type

Feature

### Additional Context

_No response_