feat(network): progress bar in search peer rows

[lukyrys]

Moves the search fallback progress into the peer table rows in Browse network → LISH details, replacing the single bar above the table.

• each peer row now shows its own status in the Status column while Add to sharing / Details runs the fallback loop
• "Downloading …" shows a per-row progress bar; a finished peer shows "Downloaded" with a green check, a failed one "Unavailable" with a red cross
• the bar is time-driven against the worst-case attempt budget (dial + manifest timeout), same approach as the search progress bar
• no backend changes