The orphan-1 rebalance (4-on-3 → 2x2) cost too much: it dropped a
4-card category from 3 cards per row to 2 across the board, and would
do the same for any N where N % maxCols == 1. User feedback: 3
densely-packed cards with a small orphan-row gap reads better than
2 wider cards in a 2x2 layout — denser rows feel more compact and
let the eye scan more apps at once.
Back to the post-d4b7731 state: fixed-width tracks (auto-fill,
--app-min) so card widths line up across categories, plus the
sentinel that sets --app-count to 99 when visible cards meet the
natural full-width column count so the box reaches the layout edge.
The 4-on-3 case is now 3+1 again — the lone card on row 2 has empty
cells to its right, accepted as the lesser of two evils.
If the orphan ever becomes a real visual issue, the next move would
be JS-rendered last row (own sub-grid sized to its item count) rather
than reducing the column count globally.
Signed-off-by: librelad <librelad@digitalangels.vip>
64c0652ddf