[i18n-ar] Translated file : docs/source/ar/conversations.md into Arabic

[AhmedAlmaghz]

What does this PR do?

Translated the docs/source/ar/conversations.md file of the documentation to Arabic العربية. I use transformers for my side-project and wanted to contribute. As a beginner, this seemed appropriate.

Some questions:

• I can't access the pr documentation endpoint for Arabic العربية. Is there a missing step?
• I left all the other files alone after copying the English docs. Is this acceptable for future updates or should I add contents to the _toctree.yml only when translation is complete? Should I delete all other files for a cleaner review?
• In Arabic, people use both Transformer and المحولات to describe the model. However, as this is more of a product of HuggingFace I opted not to translate it. May you please let me know which you would prefer?

Thank you in advance for your review.

Part of #32435

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline, Pull Request section?
• Was this discussed/approved via a Github issue or the forum ?Please add a link to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the documentation guidelines, and here are tips on formatting docstrings.
• Did you write any new necessary tests?

Who can review?

@stevhliu , @MKhalusova , @abodacs, may you please review this PR?

[abodacs]

سﻻم عليكم
@AhmedAlmaghz
تم المراجعة
لك جزيل الشكر

[AhmedAlmaghz]

Thank You @abodacs

Next:

CONCEPTUAL GUIDES

• Philosophy [i18n-ar] Translated file : docs/source/ar/philosophy.md into Arabic #33064
• Glossary [i18n-ar] Translated file : docs/source/ar/glossary.md into Arabic #33038
• What 🤗 Transformers can do [i18n-ar] Translated file : docs/source/ar/task_summary.md into Arabic #33073
• How 🤗 Transformers solve tasks [i18n-ar] Translated file : docs/source/ar/tasks_explained.md into Arabic #33074
• The Transformer model family [i18n-ar] Translated file : docs/source/ar/model_summary.md into Arabic #33047
• Summary of the tokenizers [i18n-ar] Translated file : docs/source/ar/tokenizer_summary.md into Arabic #33078
• Attention [i18n-ar] Translated file : docs/source/ar/attention.md into Arabic #33021
• Padding and truncation [i18n-ar] Translated file : docs/source/ar/pad_truncation.md into Arabic #33050
• BERTology [i18n-ar] Translated file : docs/source/ar/bertology.md into Arabic #33024
• Perplexity of fixed-length models [i18n-ar] Translated file : docs/source/ar/perplexity.md into Arabic #33063
• Pipelines for webserver inference [i18n-ar] Translated file : docs/source/ar/pipeline_webserver.md into Arabic #33066
• Model training anatomy [i18n-ar] Translated file : docs/source/ar/model_memory_anatomy.md into Arabic #33045
• Getting the most out of LLMs [i18n-ar] Translated file : docs/source/ar/llm_tutorial_optimization.md into Arabic #33043

[AhmedAlmaghz]

اشكرك اخي عبدالله
أنظر هنا
المحولات عربي

سوف ترى المستندات المترجمة بشكل صحيح

@abodacs