Dont show expansion for empty actions steps

[silverwind]

This hides the chevron icon and makes the step header unclickable for skipped steps because there is no content to expand on those.

Before:

After:

[silverwind]

There was a bug because tw-w-4 resolved to 14px instead of the 16px that I expected because it's using rem units but out root element has 14px, so pixels sizes in tailwind docs currently do not apply to us.

Edit: found a better solution.

[silverwind]

There are likely more statuses that should not be expandable, but I need some help to know which ones out of these have no output and should therefor not be expandable:

unknown <- no output?
waiting <- no output?
running
success
failure
cancelled
skipped <- done
blocked <- no output?

Maybe @wolfogre would know.

[silverwind]

I made it now like below, I think it's likely correct, but confirmation would still be great. I'm especially uncertain about blocked and unknown.

running - expandable
success - expandable
failure - expandable
cancelled - expandable
skipped - not expandable
blocked - not expandable
unknown - not expandable
waiting - not expandable

[wolfogre]

I made it now like below, I think it's likely correct, but confirmation would still be great. I'm especially uncertain about blocked and unknown.

running - expandable
success - expandable
failure - expandable
cancelled - expandable
skipped - not expandable
blocked - not expandable
unknown - not expandable
waiting - not expandable

I believe it's entirely correct. There absolutely cannot be any logs for statuses skipped, blocked and waiting. unknown shouldn't be passed to users, if it happens, it's a bug, so it's OK to either make it expandable or not.