The auto-fill minmax(300px, 1fr) template stretched cards to fill the
glass box, so a 2-card category landed at ~301px each (the box
shrunk-and-stretched to a hair over 2*300) while a 3-card category
(box now full-width) landed at ~323px each. Cards visibly didn't
align between categories — the user spotted the 22px difference.
Switching the grid template to fixed-width tracks
(repeat(auto-fill, var(--app-min))) means cards are always exactly
--app-min (300px / 280px at ≤1024) regardless of how many are
visible. Card positions and widths line up across every category.
The natural-columns sentinel from the previous pass is no longer
load-bearing — with fixed-width cards, "full width" at high N gives
no extra card-width benefit, only trailing space inside the box.
updateAppsCount drops the measurement step and just sets the visible
count, letting the formula shrink the box around the cards.
Signed-off-by: librelad <librelad@digitalangels.vip>
de6acc1f92