Quick visual fixes

A batch of small visual/polish fixes.

1. Card grid responsiveness — only 2 cards per row at wide widths

The option card grid does not pack enough cards per row at wider viewport widths. At the width shown (browser ~960px content area with devtools open, ample horizontal room for 3+ cards), the Cards view only renders 2 cards per row, leaving a large empty third column. Observed on a list (e.g. "Books") in the Cards view.

Expected: the card grid should be fluid/responsive — fitting as many cards per row as the available width allows (e.g. CSS grid with auto-fill/auto-fit + minmax, or appropriate breakpoints), so 3+ cards appear when there's room instead of capping at 2.

Repro: open a list with several options, switch to Cards view, narrow/widen the content area (or open devtools to reduce it) and observe the cards stay at 2 per row with wasted space on the right.

Fix: audit the card grid container's CSS (likely a fixed column count or a min card width that's too large) and make the column count derive from available width. Verify across narrow → wide and with the sidebar/devtools open.

2. Drawer: icons on Logout and Settings

In the drawer, the "Logout" and "Settings" items should be prefixed with icons (like the other drawer entries) instead of bare text.