feat(tip): enlarge and simplify payment interface

src/app/tip/__tests__/tip-screen.checkout.test.tsx

@@ -188,7 +188,7 @@ describe("TipScreen checkout", () => {
     });
   });
 
-  it("renders the compact purchase flow with character atmosphere", () => {
+  it("renders the enlarged purchase flow without a character Cover", () => {
     renderScreen();
 
     expect(container.textContent).toContain("Send Maya a gift");
@@ -204,14 +204,10 @@ describe("TipScreen checkout", () => {
     ).toBe("compact");
     expect(container.textContent).not.toContain("A little sweetness for today");
     expect(container.textContent).not.toContain("Tip Maya");
-    expect(
-      container
-        .querySelector("main")
-        ?.getAttribute("style"),
-    ).toContain('--tip-cover-image: url("/images/cover/maya.png")');
+    expect(container.querySelector("main")?.getAttribute("style")).toBeNull();
     expect(
       container.querySelectorAll('main > div[aria-hidden="true"]'),
-    ).toHaveLength(3);
+    ).toHaveLength(2);
   });
 
   it.each([