fix(i18n): resolve leftover French residue outside web-cloud (#278)

* fix(i18n): resolve leftover French residue outside web-cloud

Migration to new-docs left untranslated French content in non-FR locales across
several universes (same failure modes as PR #275, but beyond web-cloud).

- Two guides were copied verbatim in French in every non-FR tree. Treatment
  differs by guide family:
  - install-env-web-dev-on-vps: translated de/es/it/pl/pt (es/it/pt from FR,
    de/pl from EN); its sibling VPS guides are genuinely translated.
  - configure-pods-services-ip-allocation-policy (Managed Kubernetes, EN+FR
    only): de/es/it/pl/pt re-pointed to the EN file via symlink (EN-fallback).
- 9 EN guides had inline French residue (the CP-NAV requirements block plus
  French prerequisite/step lines) rewritten to the canonical EN form.
  cookbook-vmware-saprouter (EN+FR) also had its stale EN-content copies in
  de/es/it/pl/pt converted to symlinks.
- French image alt-text translated to the file locale across many files
  (es/it/pt/de/pl); alt attributes only.

Code, URLs, image paths, anchors, MDX components and frontmatter preserved.
External marketing URLs normalised per locale; community links set to the bare
canonical URL. FR sources untouched.

* fix(i18n): translate French residue in two pt guides (Class 3)

Two guides were properly translated in every locale except pt, where the whole
body had been left in French by the migration. Translated both from the FR
source into European Portuguese:

- storage-and-backup/file-storage/ha-nas/nas-faq
- bare-metal-cloud/dedicated-servers/network-bridging

Structure, code, MDX components, anchors, image paths and frontmatter preserved;
already-fixed pt image alt-text kept; FR sources untouched.