Persian [Farsi] localization of OpenTelemetry documentation

[Metal-Bat]

• Language info:
  • ISO 639-1 language code: fa
  • Language name: Persian (Farsi)
• Locale team info:
  • Locale mentor: @theletterf
  • Contributors: @Metal-Bat @AminAzarpey @AfshinPardeyaghoot @NeginEm98 @moeinkolivand @shaqayegh-gh
• Read through
  Localization
  and all other pages in the Contributing section
• Localize site homepage (only) to Persian and submit a PR.
  For details, see
  Localize the homepage.
• OTel maintainers:
  • Update Hugo config for fa
  • Configure cSpell and other tooling support
  • Create an issue label for lang:fa
  • Create org-level group for fa approvers
  • Update components owners for content/fa
• Create an issue to track the localization of the glossary. Add the
  issue number here. For details, see
  Localize the glossary.