[BUG] API routes - static routes don't override dynamic routes

[scottdixon]

Describe the bug

From the routing docs:

You can also provide a custom static implementation of a dynamic page to override the default. Any requests to /products/hoodie are rendered using hoodie.server.jsx instead of [handle].server.jsx:

/routes/products/hoodie.server.jsx
/routes/products/[handle].server.jsx

This doesn't apply to API routes, where the dynamic route catches both static and dynamic routes.

To Reproduce

https://stackblitz.com/edit/github-agmxcg

Point your browser to /example/static - the static route is treated like a dynamic route.

Additional context

• Hydrogen version: 1.4.2

cc) @batzlerg