Add id to inline Segment script (#32878)
Add id to inline Segment script (#32878)

When I don't include an `id`, I see the console error "VM1624:1 Segment snippet included twice."
According to https://nextjs.org/docs/basic-features/script#inline-scripts, an id should be added for inline scripts.



## Documentation / Examples

- [ ] Make sure the linting passes by running `yarn lint`

zeit/next.js,zeit/next.js,JeromeFitz/next.js,azukaru/next.js,azukaru/next.js,JeromeFitz/next.js,JeromeFitz/next.js,azukaru/next.js,JeromeFitz/next.js,azukaru/next.js,zeit/next.js