feat(ui): call the list view Checklist

"Ending soon" described the sort, not the job — and it sat one line above a
sort control whose own option reads "Ending soonest", so the tab and the
ordering looked like the same control said twice. Checklist is what a reader
with four games is doing with it.

The stored id stays "soon". That value is in `prefs.view` on real devices, and
a label is copy: renaming one must never move a reader to the other view.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

src/client/components/Welcome.tsx

@@ -165,7 +165,7 @@ function ViewChoice({
   hues: string[];
 }) {
   const options: Array<{ id: View; label: string; hint: string }> = [
-    { id: "soon", label: "Ending soon", hint: "A list, closest deadline first." },
+    { id: "soon", label: "Checklist", hint: "A list, closest deadline first." },
     { id: "timeline", label: "Timeline", hint: "Bars per game, today pinned." },
   ];