fix: team member removal button visibility and pending state

[amimaro]

Changes

• Updated the condition to index > 0 so all members except the first (typically the owner) show the button.
• Extracted each member row into a TeamMemberRow component to allow hiding the row after removal.
• Each button now handles its own pending state independently.

Before:

video1.mp4

After:

video2.mp4

[vercel]

@amimaro is attempting to deploy a commit to the Vercel Team on Vercel.

A member of the Team first needs to authorize it.