Standardize create-flow option steps on one question-and-options layout and Selection sizes.

Method cards, chips, and the right rail now share the two-column shell; last options clear the footer fade, See all stays under the stack, and the left heading no longer jumps when the list expands.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/pages/communication-methods.test.jsx

@@ -239,7 +239,7 @@ describe("Create flow communication-methods page", () => {
     ).toBeInTheDocument();
     expect(
       screen.getByText(
-        "What method should this community use to communicate with eachother?",
+        "How should this community communicate with each-other?",
       ),
     ).toBeInTheDocument();
     expect(