fix: remove footer navigation hints

tests/render-frame.test.ts

@@ -226,7 +226,7 @@ test("footer hints wrap into exact lines on narrow screens", () => {
 	});
 
 	assert.deepEqual(lines.slice(-6, -1), [
-		"Space toggle",
+		" Space toggle",
 		"t question type",
 		"Enter continue",
 		"N/Shift+N note",
@@ -254,8 +254,6 @@ test("footer keeps earlier hint chunk on the first wrapped line", () => {
 		editor: mockEditor(),
 	});
 
-	assert.equal(lines.at(-7), " ⇆ tab · ↑↓ select");
-	assert.equal(lines.at(-6), "t question type");
 	assert.deepEqual(lines.slice(-5, -1), [
 		"Enter confirm",
 		"N/Shift+N note",