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/menus.de.toml

@@ -0,0 +1,69 @@
+# -- Hauptmenü --
+# Das Hauptmenü wird in der Kopfzeile oben auf der Seite angezeigt.
+
+[[main]]
+  name = "Dokumentation"
+  pageRef = "docs"
+  weight = 10
+
+[[main]]
+  name = "Shortcodes"
+  pageRef = "docs/shortcodes"
+  weight = 15
+
+[[main]]
+  name = "Beispiele"
+  weight = 20
+
+[[main]]
+  name = "Vorlagen"
+  parent = "Beispiele"
+  pageRef = "samples"
+  weight = 16
+
+[[main]]
+  name = "Galerie"
+  parent = "Beispiele"
+  pageRef = "examples"
+  weight = 30
+
+[[main]]
+  name = "Rezepte"
+  parent = "Beispiele"
+  pageRef = "guides"
+  weight = 40
+
+[[main]]
+  name = "Benutzer"
+  pageRef = "users"
+  weight = 90
+
+[[main]]
+  name = "Merch"
+  url = "https://www.teepublic.com/user/blowfish-store/t-shirts"
+  weight = 100
+
+[[main]]
+  identifier = "twitter"
+  pre = "x-twitter"
+  url = "https://twitter.com/burufugu"
+  weight = 200
+
+[[main]]
+  identifier = "github"
+  pre = "github"
+  url = "https://github.com/nunocoracao/blowfish"
+  weight = 400
+
+
+# -- Fußzeilenmenü --
+
+ [[footer]]
+   name = "Tags"
+   pageRef = "tags"
+   weight = 10
+
+ [[footer]]
+   name = "Autoren"
+   pageRef = "authors"
+   weight = 20