Clock: toggle with Pos1 instead of Einfg

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/components/ClockOverlay.tsx

@@ -4,7 +4,7 @@
  * minus the mascot swimming through the scene (too distracting for a clock you read
  * at a glance).
  *
- * Mounted for as long as the app is, and only hidden: Einfg and the remote's Guide key
+ * Mounted for as long as the app is, and only hidden: Pos1 and the remote's Guide key
  * have to show it at once, not after a first render. The second ticker only runs while
  * it is on screen. Any click closes it. */
 

web/src/lib/__tests__/keyboard.test.ts

@@ -522,14 +522,14 @@ describe("Del", () => {
   });
 });
 
-describe("Einfg", () => {
+describe("Pos1", () => {
   it("toggles the clock, on every page", () => {
     for (const page of ["music", "room", "typing", "parents"] as const) {
-      expect(press("Insert", { ...initialUiState, page })).toContainEqual({
+      expect(press("Home", { ...initialUiState, page })).toContainEqual({
         type: "ui",
         patch: { showClock: true },
       });
-      expect(press("Insert", { ...initialUiState, page, showClock: true })).toContainEqual({
+      expect(press("Home", { ...initialUiState, page, showClock: true })).toContainEqual({
         type: "ui",
         patch: { showClock: false },
       });

web/src/lib/keyboard.ts

@@ -269,9 +269,9 @@ export function handleKey(
   // another room.
   if (key === "Delete" && !event.ctrlKey && !event.metaKey) return [{ type: "screen" }];
 
-  // Einfg, right next to it: the clock, over whatever is on screen - the typing tab
+  // Pos1, in the same block: the clock, over whatever is on screen - the typing tab
   // included, like Del, since no lesson drills it either.
-  if (key === "Insert" && !event.ctrlKey && !event.metaKey) {
+  if (key === "Home" && !event.ctrlKey && !event.metaKey) {
     return [{ type: "pop", freq: 520 }, { type: "ui", patch: { showClock: !state.showClock } }];
   }