block() no longer special-cases one download with a [bracketed] one-liner;
it always draws the summary line, the column header, and one row per
download. The non-TTY path emits the same summary for one or many. This
drops lineOne and the dual rendering path it created, so a column or state
change is made in one place, not two that could drift.
Drop the stacked progress bars for an aligned column table under a
header. Middle-elide names so downloads sharing a long prefix stay
distinct (a leading truncation rendered them identically), drop the
per-row DL:/UL: labels, and break the summary into downloading/seeding/
queued counts. Add SIZE (completed/total) and CN/SD (peer/seeder)
columns and show the seed share ratio in place of an idle upload rate.
Also fix the in-place redraw: the block could fill the pane's bottom row
and scroll it out from under the cursor, stranding a summary line each
tick. Reserve that row so the table falls back to the summary line
instead.
lineMany crammed every download onto one line as name+percent, dropping
the speed column that answers "which one is stalled" and producing ugly
double brackets for names like "[Gecko]". render N>1 as a redrawn block:
one row each (name, bar, percent, DL speed, ETA/stalled), a header with
the active count and totals, falling back to a single summary line when
the table would overflow the window. one download keeps its dashboard.
