Static Site Generation with dynamic route fallback

Test 1

This timestamp 👉 1732396589388 should be when the `npx open-next build` was run, not when the page is refreshed. Hence, this time should not change on refresh.

Test 2:

This string 👉 "First post" should be "First post"

Test 3:

Check your browser's developer console. First request might show cache MISS on first load. Subsequent refreshes should shows cache HIT.