Auto-expand the first input on the Execution overview page

[anna-geller]

Describe the issue

repro:

id: file
namespace: company.team

inputs:
  - id: file
    type: FILE

tasks:
  - id: hello
    type: io.kestra.plugin.core.log.Log
    message: flow with file

in the past, before we added the expand/collapse columnar layout, you could immediately see the preview/download button here and as a result, it had a friendlier UX — we should bring that experience back by auto-expanding this:

Environment

• Kestra Version: develop