Add arabic Translation chapter1

[Beylessen1]

@lewtun I have contributed the first chapter of the arabic translation. Chapter 2 is ready and waiting for your signal. If something isn't working please let me know before I continue working further. Currently working on Chapter 3.

[Copilot]

Pull request overview

This PR adds the full Arabic translation for Chapter 1 (including the chapter TOC) and applies a small formatting normalization to several existing MDX code snippets across multiple languages (primarily tightening multiline gr.Markdown("""...""") / summarizer("""...""") calls).

Changes:

• Add Arabic Chapter 1 pages (chapters/ar/chapter1/{1..11}.mdx) and register them in chapters/ar/_toctree.yml.
• Normalize formatting of embedded Python snippets in various chapter1/3.mdx files (summarizer example) across many locales.
• Normalize formatting of the Gradio gr.Markdown("""...""") snippet in various chapter9/7.mdx files across many locales.

Reviewed changes

Copilot reviewed 38 out of 38 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
chapters/zh-TW/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/zh-TW/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/zh-CN/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/zh-CN/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/vi/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/vi/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/th/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/te/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/ru/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/ru/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/ro/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/ro/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/pt/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/my/chapter9/7.mdx	Formatting-only changes to Gradio snippets (Markdown + Radio formatting).
chapters/my/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/ko/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/kn/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/ja/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/it/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/hi/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/fr/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/fr/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/es/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/en/chapter9/7.mdx	Formatting-only change to the Gradio Markdown snippet.
chapters/en/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/de/chapter1/3.mdx	Formatting-only change to the summarization example snippet.
chapters/ar/chapter1/1.mdx	New Arabic translation content for Chapter 1 introduction.
chapters/ar/chapter1/2.mdx	New Arabic translation content for NLP + LLMs section.
chapters/ar/chapter1/3.mdx	New Arabic translation content for pipelines overview section.
chapters/ar/chapter1/4.mdx	New Arabic translation content for “How do transformers work?”.
chapters/ar/chapter1/5.mdx	New Arabic translation content for “How Transformers solve tasks”.
chapters/ar/chapter1/6.mdx	New Arabic translation content for transformer architectures.
chapters/ar/chapter1/7.mdx	New Arabic translation content for the ungraded quiz section.
chapters/ar/chapter1/8.mdx	New Arabic translation content for LLM inference deep dive.
chapters/ar/chapter1/9.mdx	New Arabic translation content for bias/limitations section.
chapters/ar/chapter1/10.mdx	New Arabic translation content for Chapter 1 summary.
chapters/ar/chapter1/11.mdx	New Arabic translation content for the Chapter 1 exam page.
chapters/ar/_toctree.yml	Register Arabic Chapter 1 sections (and minor title spacing fix).

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