✨ Refactor docs for building scripts, use MkDocs hooks, simplify (remove) configs for languages (#9742)
* ✨ Add MkDocs hooks to re-use all config from en, and auto-generate missing docs files form en
* 🔧 Update MkDocs config for es
* 🔧 Simplify configs for all languages
* ✨ Compute available languages from MkDocs Material for config overrides in hooks
* 🔧 Update config for MkDocs for en, to make paths compatible for other languages
* ♻️ Refactor scripts/docs.py to remove all custom logic that is now handled by the MkDocs hooks
* 🔧 Remove ta language as it's incomplete (no translations and causing errors)
* 🔥 Remove ta lang, no translations available
* 🔥 Remove dummy overrides directories, no longer needed
* ✨ Use the same missing-translation.md file contents for hooks
* ⏪️ Restore and refactor new-lang command
* 📝 Update docs for contributing with new simplified workflow for translations
* 🔊 Enable logs so that MkDocs can show its standard output on the docs.py script
