Add devfile information section to workspace list card with external link
MR: Pending
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## Description
As part of our [new designs for Workspaces](https://gitlab.com/groups/gitlab-org/-/epics/18674), we need to add the devfile information to the expanded workspace cards so that users can quickly view and access the devfile configuration that defines their workspace setup.
## Visual Changes
{width=890 height=234}
## Acceptance criteria
- [ ] Add devfile information section to expanded workspace cards
- [ ] External link opens the devfile in a new tab with proper security attributes (rel="noopener noreferrer")
- [ ] Handle cases where devfile URL is unavailable gracefully (link to default devfile)
## TODO: Implementation plan
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issue