[daggerok]

What

Replaces the spread over NodeLists and Sets in the shared ui-std blocks with Array.from(...) (7 lines in src/main.tsx):

• dropdown block: paintActive rows, open active row, the Tab handler's focusable and page lists
• columns menu: persistHiddenColumns
• categories dropdown: persistHiddenCategories
• filter UI: rerenderKeepingFilterFocus

Why

The owner's IntelliJ checks src/main.tsx with TypeScript 5.9 defaults (ES5 lib), where [...document.querySelectorAll(...)] is TS2461 and [...set] is TS2802. Stocks PR 45 already made this change, now the shared blocks in the workspace match it and every repo gets the same lines. Behaviour does not change: Array.from over a NodeList or Set gives the same array in the same order.

How it was checked

• bun test (exit 0)
• bun build --target=bun scripts/update-data.ts --outfile=/dev/null and bun build --target=bun src/main.tsx --outfile=/dev/null
• .claude/tools/etfs/tc/check.sh (esnext + ide modes): 67 -> 64 error lines (TS2461x1 TS2802x2 gone), nothing new
• bun run build, then the headless Chrome tests of ui-std (--mute-audio) against dist: brand-uitest 43 passed, columns-uitest 19 passed, categories-uitest 19 passed, kbd-check 15 passed, where kbd-check drives the changed lines (ArrowDown, ArrowUp, PageDown, Tab and Shift+Tab out of the Columns panel, saved hidden columns and asset classes, filter focus and caret kept); each run ended 0 failed; console errors: none