feat(lint): add noHeadImportInDocument rule

[kaioduarte]

Summary

Implement no-head-import-in-document from eslint-plugin-next.

Test Plan

Snapshots + CI

[codspeed-hq]

CodSpeed Performance Report

Merging #4184 will degrade performances by 6.91%

_{Comparing kaioduarte:no-head-import-in-document (9e38397) with main (03937c7)}

Summary

❌ 1 regressions
✅ 104 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	kaioduarte:no-head-import-in-document	Change
❌	router_17129688031671448157.ts[cached]	2.1 ms	2.2 ms	-6.91%