Send FeatureGrid Learn more to the Learn page instead of a dead hash link.

tests/pages/home.test.jsx

@@ -120,6 +120,8 @@ describe("Page", () => {
         "Use our toolkit to improve, document, and evolve your organization.",
       ).length,
     ).toBeGreaterThan(0);
+    const learnMore = screen.getAllByRole("link", { name: "Learn more" });
+    expect(learnMore[0]).toHaveAttribute("href", "/learn");
   });
 
   test("renders ask organizer section with correct data", () => {