chore: fix typos in next package

[JamBalaya56562]

Summary

Correct typos in comments, documentation, and identifier names across the Next.js codebase.

Documentation:

• Fix typo in next-devtools README styling section

Chores:

• Correct misspellings in code comments and improve grammar across multiple modules
• Rename misnamed variables and parameters for clarity (e.g., varialbeRule to variableRule, _lineNumer to _lineNumber)
• Fix spelling errors in source code comments and documentation (e.g., prioritize, initiated, delimiter)

Improving Documentation

• [x] Run pnpm prettier-fix to fix formatting issues before opening the PR.
• [x] Read the Docs Contribution Guide to ensure your contribution follows the docs guidelines: https://nextjs.org/docs/community/contribution-guide

[ijjk]

Allow CI Workflow Run

• [ ] approve CI run for commit: 63f4a84932f4750f04c2db73e0b046876faf8a98

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

[ijjk]

Allow CI Workflow Run

• [ ] approve CI run for commit: 0f769558ce582971dc321e9bdd5515ee65f8743c

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer