Add 5 new languages to exampleSite: German, French, Spanish, Portuguese

Add complete translations for:
- German (de)
- French (fr)
- Spanish (es)
- Portuguese Brazil (pt-br)
- Portuguese Portugal (pt-pt)

Changes include:
- Language config files (languages.*.toml)
- Menu config files (menus.*.toml)
- Translated docs section (16 files x 5 langs)
- Translated homepage, guides, samples
- Translated examples, authors, tags sections
- Translated users section (112 dirs x 5 langs)
- Fixed YAML front matter formatting in user files

Hugo build now supports 9 languages total.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

exampleSite/config/_default/languages.de.toml

@@ -0,0 +1,22 @@
+languageCode = "de"
+languageName = "Deutsch"
+weight = 3
+title = "Blowfish"
+
+[params]
+  displayName = "Deutsch"
+  isoCode = "de"
+  rtl = false
+  dateFormat = "2. January 2006"
+  logo = "img/blowfish_logo_transparent.png"
+  description = "Ein leistungsstarkes, leichtgewichtiges Theme für Hugo."
+
+[params.author]
+  name = "Blowfish"
+  image = "img/blowfish_logo.png"
+  headline = "Ein leistungsstarkes, leichtgewichtiges Theme für Hugo."
+  bio = "Ein leistungsstarkes, leichtgewichtiges Theme für Hugo."
+  links = [
+    { x-twitter = "https://twitter.com/burufugu" },
+    { github = "https://github.com/nunocoracao/blowfish" },
+  ]