Screenshot showed a 4-card category laying out as 3+1 (three cards on
row 1, Wireguard Easy alone on row 2 with two card-shaped empty cells
on its right). Fixed-width tracks + auto-fill kept the cards aligned
across categories but couldn't avoid the orphan — pure CSS grid has
no way to collapse partial-row trailing cells when the column above
them is filled.
apps-manager.js now picks --app-cols deliberately: the natural
column count for the viewport, reduced by one when the last row
would otherwise be exactly one orphan card. 4 cards on a 3-col
viewport becomes 2x2; 5 cards stays at 3+2; 6 stays at 3+3+0; 7
drops to 2-col so the last row gets a partner (still has one orphan
at the very end since 7 is prime, but never below 2 cols — a single
column stack reads worse than an orphan).
CSS swap: grid-template-columns now consumes the new --app-cols
custom property and uses minmax(--app-min, 1fr) so cards stretch
within their tracks (the orphan-prevention dance means widths can
vary across categories now — tradeoff for never having internal
gaps). 1-card view still shrinks the box via the existing formula
so a lone card isn't stretched across the full row.
Signed-off-by: librelad <librelad@digitalangels.vip>
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