Merge pull request #267 from run-llama/pierre/i18n-take-2

apps/docs/docusaurus.config.js

...plugin-content-docs/current/_static/concepts/indexing.jpg

...plugin-content-docs/current/_static/concepts/querying.jpg

...urus-plugin-content-docs/current/_static/concepts/rag.jpg

apps/docs/i18n/ar/docusaurus-plugin-content-docs/current/api

...18n/ar/docusaurus-plugin-content-docs/current/concepts.md

...n/ar/docusaurus-plugin-content-docs/current/end_to_end.md

...ar/docusaurus-plugin-content-docs/current/environments.md

...r/docusaurus-plugin-content-docs/current/installation.mdx

...ar/docusaurus-plugin-content-docs/current/introduction.md

...in-content-docs/current/modules/high_level/chat_engine.md

...gin-content-docs/current/modules/high_level/data_index.md

...in-content-docs/current/modules/high_level/data_loader.md

...nt-docs/current/modules/high_level/documents_and_nodes.md

...n-content-docs/current/modules/high_level/query_engine.md

...r/docusaurus-plugin-content-docs/current/modules/index.md

...lugin-content-docs/current/modules/low_level/embedding.md

...urus-plugin-content-docs/current/modules/low_level/llm.md

...gin-content-docs/current/modules/low_level/node_parser.md

...nt-docs/current/modules/low_level/response_synthesizer.md