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]>

test/views.test.tsx

@@ -104,7 +104,7 @@ describe("Welcome (first run)", () => {
 
   test("asks how the reader wants to see their events", () => {
     expect(html()).toContain("How do you want to see them?");
-    expect(html()).toContain("Ending soon");
+    expect(html()).toContain("Checklist");
     expect(html()).toContain("Timeline");
   });