docs: fix Link prefetch grammar and Client Components wording (#97132)
## Summary
- Fix wording in Link prefetch docs: `navigation's` -> `navigation`
- Fix wording in CRA migration guide: `clients components` -> `Client
Components`
## Why
These are user-facing documentation wording issues. This change improves
clarity and readability for readers following these guides.
## Scope
Docs-only changes. No runtime behavior changes.
Attribution: This change was originally authored by @Rezakarimzadeh98 in
#96998.
Co-authored-by: Reza Karimzadeh <r.karimzadeh1998@gmail.com>