Fixed-width tracks + cap formula kept the box pinned to "N cards at
328px" outer regardless of viewport size, so zooming out left a
massive empty band between the box's right edge and the layout edge.
The box was no longer "dynamic" in any real sense — it scaled with
the card count, not with the available content.
Switching grid-template-columns to repeat(auto-fit, minmax(--app-min,
1fr)) lets cards stretch to fill the row, and auto-fit collapses
trailing empty tracks so a 2-card row in a 3-track-wide viewport
doesn't leave a 328px hole at the end. Zoom in/out now just widens
or narrows the cards; the box always reaches the layout edge.
This drops the cross-category card-width uniformity that the earlier
fixed-width pass introduced — a 2-card category now lays out as two
wide cards while a 3-card category gets three narrower ones. That's
mutually exclusive with "box always full width" without leaving
holes, and the user has shifted priority to full-width-always.
JS cleanup: dropped updateAppsCount + its window-resize listener +
its callsites in renderApps/filterAppsByQuery — no more --app-count
or column-count measurement needed when the grid handles everything
natively.
Signed-off-by: librelad <librelad@digitalangels.vip>
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