[1.30.x] Update dev ui start workflow page (#253)

Update dev ui start workflow page (#226)

* Update dev ui start workflow page

* resolved Tristan's review comments

* resolved Paulo's comments

* resolved Kalyani's review comments

Co-authored-by: Ajay Jaganathan <36824134+AjayJagan@users.noreply.github.com>
8 files changed